Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

Management’s discussion and analysis of financial condition and results of operations is comprised of the following sections:

Page No.
Overview48
Results of Operations48
Consolidated Financial Results48
CNA Financial49
Diamond Offshore55
Boardwalk Pipeline58
Loews Hotels & Co62
Corporate63
Liquidity and Capital Resources64
Parent Company64
Subsidiaries64
Contractual Obligations67
Investments67
Insurance Reserves71
Critical Accounting Estimates79
Accounting Standards Update81
Forward-Looking Statements81
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OVERVIEW

We are a holding company and have five reportable segments comprised of four individual operating subsidiaries, CNA Financial Corporation (“CNA”), Diamond Offshore Drilling, Inc. (“Diamond Offshore”), Boardwalk Pipeline Partners, LP (“Boardwalk Pipeline”) and Loews Hotels Holding Corporation (“Loews Hotels & Co”); and the Corporate segment. The operations of Consolidated Container Company LLC (“Consolidated Container”) since the acquisition date are included in the Corporate segment. Each of our operating subsidiaries is headed by a chief executive officer who is responsible for the operation of its business and has the duties and authority commensurate with that position.

We rely upon our invested cash balances and distributions from our subsidiaries to generate the funds necessary to meet our obligations and to declare and pay any dividends to our shareholders. The ability of our subsidiaries to pay dividends is subject to, among other things, the availability of sufficient earnings and funds in such subsidiaries, applicable state laws, including in the case of the insurance subsidiaries of CNA, laws and rules governing the payment of dividends by regulated insurance companies (see Note 13 of the Notes to Consolidated Financial Statements included under Item 8) and compliance with covenants in their respective loan agreements. Claims of creditors of our subsidiaries will generally have priority as to the assets of such subsidiaries over our claims and those of our creditors and shareholders.

Unless the context otherwise requires, references in this Report to “Loews Corporation,” “the Company,” “Parent Company,” “we,” “our,” “us” or like terms refer to the business of Loews Corporation excluding its subsidiaries.

The following discussion should be read in conjunction with Item 1A, Risk Factors, and Item 8, Financial Statements and Supplementary Data of this Form 10-K.

RESULTS OF OPERATIONS

Consolidated Financial Results

The following table summarizes net income attributable to Loews Corporation by segment and net income per share attributable to Loews Corporation for the years ended December 31, 2017, 2016 and 2015:

Year Ended December 31201720162015
(In millions)
CNA Financial$801$774$433
Diamond Offshore(27)(186)(156)
Boardwalk Pipeline3808974
Loews Hotels & Co641212
Corporate(54)(35)(103)
Net income attributable to Loews Corporation$1,164$654$260
Basic net income per common share$3.46$1.93$0.72
Diluted net income per common share$3.45$1.93$0.72

2017 Compared with 2016

Consolidated net income attributable to Loews Corporation for 2017 was $1.16 billion, or $3.45 per share, compared to $654 million, or $1.93 per share, in 2016.

Net income for 2017 includes a significant net benefit of $200 million, or $0.59 per share, resulting from the enactment on December 22, 2017 of the Tax Cut and Jobs Act of 2017, (the “Tax Act”). The net benefit primarily relates to the remeasurement of Loews’s net deferred tax liability precipitated by the lowering of the U.S. federal corporate tax rate from 35% to 21%. Excluding the impact of the Tax Act, net income for 2017 would have been $964 million. For additional details on the Tax Act, see the subsidiary discussions below.

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Net income attributable to Loews in 2017 increased as compared to the prior year partially due to the net benefit from the Tax Act discussed above. Absent this benefit, net income increased $310 million primarily from higher earnings at CNA, Loews Hotels & Co and Diamond Offshore. Net income for 2017 and 2016 included asset impairment charges at Diamond Offshore of $32 million and $267 million (both after tax and noncontrolling interests).

2016 Compared with 2015

Consolidated net income attributable to Loews Corporation for 2016 was $654 million, or $1.93 per share, compared to $260 million, or $0.72 per share, in 2015.

Net income for 2016 included asset impairment charges of $267 million (after tax and noncontrolling interests) at Diamond Offshore. In 2015, net income included asset impairment charges at Diamond Offshore of $341 million (after tax and noncontrolling interests) and a reserve charge of $177 million (after tax and noncontrolling interests) related to the long term care business at CNA.

Net income attributable to Loews Corporation in 2016 increased compared to the prior year primarily due to the impact of the reserve charge at CNA in 2015 and the asset impairment charges at Diamond Offshore which were lower in 2016 compared to 2015. Absent these charges, net income increased $143 million due to higher earnings at CNA and Boardwalk Pipeline and improved results from the Parent Company investment portfolio. These increases were partially offset by lower earnings at Diamond Offshore.

CNA Financial

The following table summarizes the results of operations for CNA for the years ended December 31, 2017, 2016 and 2015 as presented in Note 19 of the Notes to Consolidated Financial Statements included under Item 8. For further discussion of Net investment income and Net realized investment results, see the Investments section of this MD&A.

Year Ended December 31201720162015
(In millions)
Revenues:
Insurance premiums$6,988$6,924$6,921
Net investment income2,0341,9881,840
Investment gains (losses)12262(71)
Other revenues439410411
Total9,5839,3849,101
Expenses:
Insurance claims and policyholders’ benefits5,3105,2835,384
Amortization of deferred acquisition costs1,2331,2351,540
Other operating expenses1,5231,5581,469
Interest203167155
Total8,2698,2438,548
Income before income tax1,3141,141553
Income tax expense(419)(279)(71)
Net income895862482
Amounts attributable to noncontrolling interests(94)(88)(49)
Net income attributable to Loews Corporation$801$774$433
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2017 Compared with 2016

Net income increased $27 million in 2017 as compared with 2016 primarily due to improved non-catastrophe current accident year underwriting results, lower adverse prior year reserve development recorded under the 2010 asbestos and environmental pollution (“A&EP”) loss portfolio transfer, higher net investment income and higher net realized investment results. These increases were partially offset by higher net catastrophe losses in 2017, and a loss of $24 million (after tax and noncontrolling interests) on the early redemption of debt in 2017. As a result of the Tax Act, CNA’s net deferred tax assets were remeasured as of the date of enactment, resulting in a one-time decrease to net income of $87 million ($78 million after noncontrolling interests).

2016 Compared with 2015

Net income increased $380 million in 2016 as compared with 2015, primarily as a result of a $305 million ($177 million after tax and noncontrolling interests) charge in 2015 related to increasing long term care active life and claim reserves. As the active life reserve assumptions were unlocked in 2015, long term care results in 2016 improved significantly. Results in 2016 also reflect favorable net prior year development of $314 million as compared to $218 million recorded in 2015. Further information on net prior year development is included in Note 8 of the Notes to Consolidated Financial Statements under Item 8. In addition, net investment income increased $148 million and investment results improved $133 million in 2016 as compared with 2015, driven by improved limited partnership investments and fixed maturity securities income, lower other-than-temporary impairment (“OTTI”) losses recognized in earnings and higher net realized investment gains on sales of securities. These increases were partially offset by an increase in the current accident year loss ratio and higher underwriting expenses.

CNA’s Property & Casualty and Other Insurance Operations

CNA’s Property and Casualty Operations include its Specialty, Commercial and International lines of business. CNA’s Other Insurance Operations outside of Property and Casualty Operations include its long term care business that is in run-off, certain corporate expenses, including interest on CNA’s corporate debt, and certain property and casualty businesses in run-off, including CNA Re and A&EP. CNA’s products and services are primarily marketed through independent agents, brokers and managing general underwriters to a wide variety of customers, including small, medium and large businesses, insurance companies, associations, professionals and other groups. We believe the presentation of CNA as one reportable segment is appropriate in accordance with applicable accounting standards on segment reporting. However, for purposes of this discussion and analysis of the results of operations, we provide greater detail with respect to CNA’s Property and Casualty Operations and Other Insurance Operations to enhance the reader’s understanding and to provide further transparency into key drivers of CNA’s financial results.

What we previously referred to as Net operating income (loss) for CNA in our public disclosures, is now called Core income (loss). With this terminology change, Non-Core operations is now called Other Insurance Operations. The fourth quarter 2017 net deferred tax asset remeasurement was excluded from core income (loss) for the year ended December 31, 2017. Otherwise, there were no changes to the calculation of this measure. In assessing CNA’s insurance operations, the Company utilizes the core income (loss) financial measure. Core income (loss) is calculated by excluding from net income (loss) (i) net realized investment gains or losses, (ii) income or loss from discontinued operations, (iii) any cumulative effects of changes in accounting guidance and (iv) deferred tax asset and liability remeasurement as a result of an enacted U.S. federal tax rate change. In addition, core income (loss) excludes the effects of noncontrolling interests. The calculation of core income (loss) excludes net realized investment gains or losses because net realized investment gains or losses are generally driven by economic factors that are not necessarily consistent with key drivers of underwriting performance, and are therefore not considered an indication of trends in insurance operations. Core income (loss) is deemed to be a non-GAAP financial measure and management believes this measure is useful to investors as management uses this measure to assess financial performance.

Property and Casualty Operations

In evaluating the results of the Property and Casualty Operations, CNA utilizes the loss ratio, the expense ratio, the dividend ratio and the combined ratio. These ratios are calculated using GAAP financial results. The loss ratio is

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the percentage of net incurred claim and claim adjustment expenses to net earned premiums. The expense ratio is the percentage of insurance underwriting and acquisition expenses, including the amortization of deferred acquisition costs, to net earned premiums. The dividend ratio is the ratio of policyholders’ dividends incurred to net earned premiums. The combined ratio is the sum of the loss, expense and dividend ratios. In addition, CNA also utilizes renewal premium change, rate, retention and new business in evaluating operating trends. Renewal premium change represents the estimated change in average premium on policies that renew, including rate and exposure changes. Rate represents the average change in price on policies that renew excluding exposure changes. Retention represents the percentage of premium dollars renewed in comparison to the expiring premium dollars from policies available to renew. Renewal premium change, rate and retention presented for the prior year are updated to reflect subsequent activity on policies written in the period. New business represents premiums from policies written with new customers and additional policies written with existing customers.

The following tables summarize the results of CNA’s Property and Casualty Operations for the years ended December 31, 2017, 2016 and 2015.

Year Ended December 31, 2017SpecialtyCommercialInternationalTotal
(In millions, except %)
Net written premiums$2,771$2,882$881$6,534
Net earned premiums2,7532,8408576,450
Net investment income538642521,232
Core income6103418959
Other performance metrics:
Loss and loss adjustment expense ratio55.8%67.9%67.0%62.6%
Expense ratio32.035.237.834.2
Dividend ratio0.20.60.3
Combined ratio88.0%103.7%104.8%97.1%
Rate0%0%0%0%
Renewal premium change2222
Retention88868086
New business (a)$251$559$275$1,085
Year Ended December 31, 2016
Net written premiums$2,780$2,841$821$6,442
Net earned premiums2,7792,8048066,389
Net investment income516638511,205
Core income65031121982
Other performance metrics:
Loss and loss adjustment expense ratio52.8%68.7%61.0%60.8%
Expense ratio32.036.838.134.9
Dividend ratio0.20.30.2
Combined ratio85.0%105.8%99.1%95.9%
Rate1%(2)%(1)%(1)%
Renewal premium change23(1)2
Retention88847685
New business (a)$249$520$240$1,009
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Year Ended December 31, 2015SpecialtyCommercialInternationalTotal
(In millions, except %)
Net written premiums$2,781$2,818$822$6,421
Net earned premiums2,7822,7888046,374
Net investment income474593521,119
Core income56036937966
Other performance metrics:
Loss and loss adjustment expense ratio57.4%65.1%59.5%61.0%
Expense ratio31.136.138.134.2
Dividend ratio0.20.30.2
Combined ratio88.7%101.5%97.6%95.4%
Rate1%1%(1)%1%
Renewal premium change34
Retention87787681
New business (a)$279$552$111$942
(a)Includes Hardy new business of $151 million and $133 million for the years ended December 31, 2017 and 2016. Prior year amounts are not included for Hardy.

2017 Compared with 2016

Total net written premiums increased $92 million in 2017 as compared with 2016. Net written premiums for International increased $60 million in 2017 as compared with 2016 due to higher new business, positive renewal premium change and higher retention. Excluding the effect of foreign currency exchange rates and premium development, net written premiums for International increased 6.7% in 2017. Net written premiums for Specialty were consistent with 2016. New business, renewal premium change and retention also remained at consistent levels for Specialty. Net written premiums for Commercial increased $41 million in 2017 as compared with 2016, primarily driven by higher new business within Middle Markets, strong retention and positive renewal premium change. This was partially offset by an unfavorable premium rate adjustment within its Small Business unit as discussed in Note 18 to the Consolidated Financial Statements under Item 8. The change in net earned premiums for Commercial and International was consistent with the trend in net written premiums.

Core income decreased $23 million in 2017 as compared with 2016. The decrease was due to lower favorable net prior year loss reserve development and higher net catastrophe losses, partially offset by improved non-catastrophe current accident year underwriting results and higher net investment income. In addition, results reflect the favorable period over period effect of foreign currency exchange. Net catastrophe losses were $259 million (after tax) in 2017 as compared to net catastrophe losses of $111 million (after tax) in 2016.

Favorable net prior year development of $302 million and $316 million was recorded in 2017 and 2016. In 2017 and 2016, Specialty recorded favorable net prior year development of $216 million and $305 million. Commercial recorded favorable net prior year development of $59 million as compared with unfavorable net prior year development of $53 million in 2016. International recorded favorable net prior year development of $27 million and $64 million in 2017 and 2016. Further information on net prior year development is included in Note 8 of the Notes to Consolidated Financial Statements included under Item 8.

Specialty’s combined ratio increased 3.0 points in 2017 as compared with 2016. The loss ratio increased 3.0 points primarily due to lower favorable net prior year loss reserve development and higher net catastrophe losses. Net catastrophe losses were $49 million, or 1.8 points of the loss ratio, in 2017 as compared with $18 million, or 0.6 points of the loss ratio, in 2016. The loss ratio, excluding catastrophes and development, improved 1.3 points. The expense ratio in 2017 was consistent with 2016.

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Commercial’s combined ratio improved 2.1 points in 2017 as compared with 2016. The loss ratio improved 0.8 points primarily due to the favorable period over period effect of net prior year loss reserve development, partially offset by higher net catastrophe losses. Net catastrophe losses were $267 million, or 9.4 points of the loss ratio, in 2017, as compared with $116 million, or 4.1 points of the loss ratio, in 2016. The loss ratio, excluding catastrophes and development, improved 1.9 points. The expense ratio improved 1.6 points in 2017 as compared with 2016 reflecting both CNA’s ongoing efforts to improve productivity and the actions taken in last year’s third and fourth quarters to reduce expenses.

International’s combined ratio increased 5.7 points in 2017 as compared with 2016. The loss ratio increased 6.0 points primarily due to lower favorable net prior year loss reserve development and higher net catastrophe losses, partially offset by lower current accident year large losses. Net catastrophe losses were $64 million, or 7.9 points of the loss ratio, in 2017, as compared to $31 million, or 3.9 points of the loss ratio, in 2016. The loss ratio excluding catastrophes and development improved 3.0 points. The expense ratio improved 0.3 points in 2017 as compared with 2016 primarily due to the higher net earned premiums.

2016 Compared with 2015

Net written premiums increased $21 million in 2016 as compared with 2015. Net written premiums for Commercial increased $23 million in 2016 as compared with 2015, driven by strong retention in Middle Markets, partially offset by a decrease in Small Business, which included a premium rate adjustment, as discussed in Note 18 of the Notes to Consolidated Financial Statements under Item 8. Net written premiums for Specialty in 2016 were consistent with 2015 as growth in warranty was offset by a decrease in management and professional liability and health care due to underwriting actions undertaken in certain business lines. Net written premiums for International in 2016 were consistent with 2015 and include favorable period over period premium development of $24 million. Excluding the effect of foreign currency exchange rates and premium development, net written premiums increased 1.4% in 2016 in International. The increase in net earned premiums was consistent with the trend in net written premiums in Commercial. Excluding the effect of foreign currency exchange rates and premium development, the increase in net earned premiums was consistent with the trend in net written premiums in International.

Core income increased $16 million in 2016 as compared with 2015. The increase in core income was primarily due to higher favorable net prior year reserve development and net investment income, partially offset by an increase in the current accident year loss ratio and higher underwriting expenses. Net catastrophe losses were $111 million (after tax) in 2016 as compared to catastrophe losses of $95 million (after tax) in 2015.

Favorable net prior year development of $316 million and $218 million was recorded in 2016 and 2015. Specialty recorded favorable net prior year development of $305 million and $152 million in 2016 and 2015, Commercial recorded unfavorable net prior year development of $53 million in 2016 as compared with favorable net prior year development of $30 million in 2015 and International recorded favorable net prior year development of $64 million and $36 million in 2016 and 2015. Further information on net prior year development is included in Note 8 of the Notes to Consolidated Financial Statements included under Item 8.

Specialty’s combined ratio decreased 3.7 points in 2016 as compared with 2015. The loss ratio decreased 4.6 points due to higher favorable net prior year reserve development, partially offset by a higher current accident year loss ratio. Specialty’s expense ratio increased 0.9 points in 2016 as compared with 2015 due to higher employee costs and higher information technology (“IT”) spending primarily related to new underwriting platforms.

Commercial’s combined ratio increased 4.3 points in 2016 as compared with 2015. The loss ratio increased 3.6 points due to the unfavorable period over period effect of net prior year reserve development and a higher current accident year loss ratio due to higher large losses. Commercial’s expense ratio increased 0.7 points in 2016 as compared with 2015 due to higher employee costs and higher IT spending primarily related to a new underwriting platform.

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International’s combined ratio increased 1.5 points in 2016 as compared with 2015. The loss ratio increased 1.5 points primarily due to an increase in the current accident year loss ratio driven by a higher level of large losses related to political risk, property and financial institutions, partially offset by higher favorable net prior year development. International’s expense ratio was consistent with 2015.

Other Insurance Operations

The following table summarizes the results of CNA’s Other Insurance Operations for the years ended December 31, 2017, 2016 and 2015.

Years Ended December 31201720162015
(In millions)
Net earned premiums$ 539$ 536$ 548
Net investment income802783721
Core loss(40)(158)(451)

2017 Compared with 2016

Core loss was $40 million in 2017, an improvement of $118 million as compared with 2016. This improvement was primarily driven by lower adverse prior year reserve development in 2017 for A&EP under the loss portfolio transfer, as further discussed in Note 8 of the Notes to Consolidated Financial Statements included under Item 8. In addition, the improvement also reflects a higher release of long term claim reserves resulting from the annual claims experience study as compared with 2016, higher net investment income and improved results in the long term care business driven by favorable morbidity partially offset by unfavorable persistency.

The effective tax rate for the long term care business is generally a function of the U.S. federal corporate income tax rate and the relative proportion of tax exempt investment income on municipal bonds supporting liabilities to the overall pretax income of the business. The reduction in the U.S. federal corporate income tax rate effective January 1, 2018 will reduce the tax benefit on the long term care business’s pretax losses.

2016 Compared with 2015

Core loss decreased $293 million in 2016 as compared to 2015. In 2015, CNA recognized a $198 million (after-tax) charge relating to a premium deficiency and claim reserve strengthening in its long term care business. The December 31, 2015 Gross Premium Valuation (“GPV”) indicated a premium deficiency of $296 million. The indicated premium deficiency necessitated a charge to income that was effected by the write off of the entire long term care deferred acquisition cost of $289 million and an increase to active life reserves of $7 million. Due to the recognition of the premium deficiency and resetting of actuarial assumptions in the fourth quarter of 2015, the operating results of CNA’s long term care business in 2016 reflect the variance between actual experience and the expected results contemplated in its best estimate reserves.

In 2016, the long term care business recorded Core income of $20 million, driven by a favorable release of claim reserves resulting from the annual claims experience study and higher net investment income due to an increase in the invested asset base. The long term care results were generally in line with expectations, as the impact of favorable morbidity was partially offset by unfavorable persistency. In 2015, results of CNA’s long term care business reflected variances between actual experience and actuarial assumptions that were locked-in at policy issuance. As a result of the reserve assumption unlocking, the 2016 and 2015 results are not comparable. For further discussion of the GPV and premium deficiency, see the Insurance Reserves section of this MD&A.

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Core income in 2016 and 2015 was also negatively affected by $83 million and $55 million (after tax) charges related to the application of retroactive reinsurance accounting to adverse reserve development ceded under the 2010 A&EP loss portfolio transfer, as further discussed in Note 8 of the Notes to Consolidated Financial Statements included under Item 8.

Non-GAAP Reconciliation of Core Income (Loss) to Net Income

The following table reconciles core income (loss) to net income attributable to Loews Corporation for the CNA segment for the years ended December 31, 2017, 2016 and 2015:

Year Ended December 31201720162015
(In millions)
Core income (loss):
Property and Casualty Operations$ 959$ 982$ 966
Other Insurance Operations(40)(158)(451)
Total core income (loss)919824515
Realized investment gains (losses) (after tax)8243(38)
Charge related to the Tax Act(87)
Consolidating adjustments including purchase accounting and noncontrolling interests(113)(93)(44)
Net income attributable to Loews Corporation$ 801$ 774$ 433

Referendum on the United Kingdom’s Membership in the European Union

In 2016, the United Kingdom (“U.K.”) held a referendum in which voters approved an exit from the European Union (“E.U.”), commonly referred to as “Brexit.” As a result of the referendum, in 2017 the British government formally commenced the process to leave the E.U. and began negotiating the terms of treaties that will govern the U.K.’s future relationship with the E.U. Although the terms of any future treaties are unknown, CNA believes changes in its international operating platform will be required to allow CNA to continue to write business in the E.U. after the completion of Brexit. Therefore CNA has begun the process of establishing a new European subsidiary in Luxembourg. As a result of these changes, the complexity and cost of regulatory compliance of CNA’s European business is likely to increase.

Diamond Offshore

Overview

Oil prices have partially rebounded from the historical 12-year low of less than $30 per barrel in January of 2016 to the upper $60s per barrel range at the end of January of 2018. The increase in commodity price is in part due to the shutdown of a major North Sea pipeline in December of 2017, which led to production shutdowns at several offshore fields, and production cuts by certain members of the Organization of Petroleum Exporting Countries (“OPEC”) and others that went into effect in 2017 to reduce the oversupply of oil and raise and potentially stabilize oil prices. However, the increase in oil prices has not yet resulted in a measurable increase in demand for offshore contract drilling services or higher dayrates as capital spending for offshore exploration and development remains at a relatively low level at the start of 2018. As a consequence, the offshore contract drilling industry remains weak.

Industry analysts have reported that in 2017, for the third consecutive year, the global supply of floater rigs decreased with 30 floaters being scrapped during the year, for a total of over 80 floaters retired since 2015. Despite these events, the oversupply of drilling rigs in the floater markets continues to persist as drilling rigs across all water depth categories continue to be cold stacked as they come off contract with no immediate future work. Industry reports indicate that there remain approximately 40 newbuild floaters on order with scheduled deliveries between 2018 and 2021. Industry analysts predict that the 2018 delivery dates may be deferred.

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Given the oversupply of rigs, competition for the limited number of offshore drilling jobs remains intense. In some cases, dayrates have been negotiated at break-even or below-cost levels in order to enable the drilling contractor to recover a portion of operating costs for rigs that would otherwise be uncontracted or cold stacked. In addition, customers have indicated a preference for “hot” rigs rather than reactivated cold-stacked rigs. This preference incentivizes the drilling contractor to contract rigs at lower rates for the sole purpose of maintaining the rigs in an active state and allowing for at least partial cost recovery.

Diamond Offshore’s results of operations and cash flows for the three years ended December 31, 2017 have been materially impacted by continuing depressed market conditions in the offshore drilling industry. Diamond Offshore currently expects that these adverse market conditions will continue for the near term, which could result in more of Diamond Offshore’s rigs being without contracts, contracted at lower rates than the rigs are currently earning and/or cold stacked or scrapped. These events, if they were to occur, could further materially and adversely affect its financial condition, results of operations and cash flows. When Diamond Offshore cold stacks or elects to scrap a rig, it evaluates the rig for impairment. During 2017, 2016 and 2015, Diamond Offshore recognized aggregate impairment charges of $100 million (three rigs), $680 million (eight rigs and related spare parts) and $861 million (17 rigs).

Historically, the longer a drilling rig remains cold stacked, the higher the cost of reactivation and, depending on the age, technological obsolescence and condition of the rig, the lower the likelihood that the rig will be reactivated at a future date. As of January 29, 2018, five rigs in Diamond Offshore’s fleet were cold stacked.

Contract Drilling Backlog

Diamond Offshore’s contract drilling backlog was $2.4 billion, $2.6 billion and $3.6 billion as of January 1, 2018 (based on contract information known at that time), October 1, 2017 (the date reported in our Quarterly Report on Form 10-Q for the quarter ended September 30, 2017) and January 1, 2017 (the date reported in our Annual Report on Form 10-K for the year ended December 31, 2016). The contract drilling backlog by year as of January 1, 2018 is $1.1 billion in 2018, $1.0 billion in 2019 and $0.3 billion in 2020.

Contract drilling backlog includes only firm commitments (typically represented by signed contracts) and is calculated by multiplying the contracted operating dayrate by the firm contract period. Diamond Offshore’s calculation also assumes full utilization of its drilling equipment for the contract period (excluding scheduled shipyard and survey days); however, the amount of actual revenue earned and the actual periods during which revenues are earned will be different than the amounts and periods stated above due to various factors affecting utilization such as weather conditions and unscheduled repairs and maintenance. Contract drilling backlog excludes revenues for mobilization, demobilization, contract preparation and customer reimbursables. Changes in Diamond Offshore’s contract drilling backlog between periods are generally a function of the performance of work on term contracts, as well as the extension or modification of existing term contracts and the execution of additional contracts. In addition, under certain circumstances, Diamond Offshore’s customers may seek to terminate or renegotiate its contracts, which could adversely affect its reported backlog.

Results of Operations

Diamond Offshore’s pretax operating income (loss) is primarily a function of contract drilling revenue earned less contract drilling expenses incurred or recognized. The two most significant variables affecting Diamond Offshore’s contract drilling revenues are dayrates earned and rig utilization rates achieved by its rigs, each of which is a function of rig supply and demand in the marketplace. Revenues are also affected by the acquisition or disposal of rigs, rig mobilizations, required surveys and shipyard projects.

Operating expenses represent all direct and indirect costs associated with the operation and maintenance of Diamond Offshore’s drilling equipment. The principal components of Diamond Offshore’s operating costs are, among other things, direct and indirect costs of labor and benefits, repairs and maintenance, freight, regulatory inspections, boat and helicopter rentals and insurance.

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The following table summarizes the results of operations for Diamond Offshore for the years ended December 31, 2017, 2016 and 2015 as presented in Note 19 of the Notes to Consolidated Financial Statements included under Item 8:

Year Ended December 31201720162015
(In millions)
Revenues:
Contract drilling revenues$ 1,451$ 1,525$ 2,360
Net investment income213
Investment losses(12)
Other revenues477565
Total1,5001,5892,428
Expenses:
Contract drilling expenses8027721,228
Other operating expenses
Impairment of assets100680881
Other expenses471518627
Interest1499094
Total1,5222,0602,830
Loss before income tax(22)(471)(402)
Income tax benefit4111117
Amounts attributable to noncontrolling interests(9)174129
Loss attributable to Loews Corporation$ (27)$ (186)$ (156)

2017 Compared with 2016

Contract drilling revenue decreased $74 million in 2017 as compared with 2016, primarily due to lower average daily revenue earned by all rig types, partially offset by the favorable impact of an aggregate 353 incremental revenue earning days. Total contract drilling expense increased $30 million in 2017 as compared with 2016, reflecting higher amortized rig mobilization expense of $25 million and incremental contract drilling costs associated with the drillships of $28 million, partially offset by a net reduction in other rig operating and overhead costs of $23 million.

Net results improved $159 million in 2017 as compared with 2016, primarily due to a lower aggregate impairment charge recognized in 2017 of $100 million ($32 million after taxes and noncontrolling interests) as compared with $680 million ($267 million after taxes and noncontrolling interests) in 2016 and reduced depreciation expense, primarily due to a lower depreciable asset base as a result of asset impairments recognized in 2016 and 2017. In addition, results reflect a net reduction in rig operating results for the floater and jack-up rigs and an increase in interest expense due to a loss of $35 million ($11 million after tax and noncontrolling interests) related to the redemption of debt in 2017, as discussed in Note 11 of the Notes to Consolidated Financial Statements included under Item 8, and a reduction in interest capitalized during 2017 due to the completion of construction projects in 2016.

The income tax provision for the year ended December 31, 2017 includes a $36 million one-time charge related to the Tax Act, which consisted of: (i) a $75 million charge for the mandatory, deemed repatriation of foreign earnings, inclusive of the utilization of certain tax attributes offset by a provisional liability for uncertain tax positions related to such attributes, (ii) a $74 million credit resulting from the remeasurement of net deferred tax liabilities at the lower corporate tax rate and (iii) a $35 million charge recorded at the Loews level for the difference between the book basis and tax basis in Diamond Offshore.

2016 Compared with 2015

Contract drilling revenue decreased $835 million in 2016 as compared with 2015 due to depressed market conditions in all floater markets and for the jack-up rig, reflecting an aggregate of 2,577 fewer revenue earning days and lower average daily revenue earned by the ultra-deepwater and deepwater floater fleets. Average daily revenue increased for the mid-water and jack-up fleets primarily due to the favorable settlement of a contractual dispute and

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receipt of loss-of-hire insurance proceeds, each in 2016. Contract drilling expense decreased $456 million in 2016 as compared with 2015, reflecting Diamond Offshore’s lower cost structure due to additional rigs idled, cold stacked or retired during 2015 and 2016, as well as the favorable impact of cost control initiatives.

Net results decreased $30 million in 2016 as compared with 2015, primarily due to lower utilization of the rig fleet, which reduced both contract drilling revenue and expense for the year. Results for 2016 also reflected an aggregate impairment charge of $680 million ($267 million after taxes and noncontrolling interests) compared to impairment charges aggregating $861 million ($341 million after taxes and noncontrolling interests) in 2015. The results were also impacted by a $12 million ($4 million after tax and noncontrolling interests) loss on an investment in privately-held corporate bonds. These unfavorable variances were partially offset by decreased depreciation expense, as a result of the impairment charges in 2015 and 2016 and resulting lower depreciable asset base, the absence of a $20 million impairment charge in 2015 to write-off all goodwill associated with the Company’s investment in Diamond Offshore and a favorable $43 million tax adjustment primarily related to Diamond Offshore’s Egyptian liability for uncertain tax positions related to the devaluation of the Egyptian pound.

Boardwalk Pipeline

Overview

Boardwalk Pipeline derives revenues primarily from the transportation and storage of natural gas and natural gas liquids (“NGLs”). Transportation services consist of firm natural gas transportation, where the customer pays a capacity reservation charge to reserve pipeline capacity at receipt and delivery points along pipeline systems, plus a commodity and fuel charge on the volume of natural gas actually transported, and interruptible natural gas transportation, under which the customer pays to transport gas only when capacity is available and used. The transportation rates Boardwalk Pipeline is able to charge customers are heavily influenced by market trends (both short and longer term), including the available natural gas supplies, geographical location of natural gas production, the demand for gas by end-users such as power plants, petrochemical facilities and liquefied natural gas (“LNG”) export facilities and the price differentials between the gas supplies and the market demand for the gas (basis differentials). Rates for short term firm and interruptible transportation services are influenced by shorter term market conditions such as current and forecasted weather.

Boardwalk Pipeline offers firm natural gas storage services in which the customer reserves and pays for a specific amount of storage capacity, including injection and withdrawal rights, and interruptible storage and parking and lending (“PAL”) services where the customer receives and pays for capacity only when it is available and used. The value of Boardwalk Pipeline’s storage and PAL services (comprised of parking gas for customers and/or lending gas to customers) is affected by natural gas price differentials between time periods, such as between winter and summer (time period price spreads), price volatility of natural gas and other factors. Boardwalk Pipeline’s storage and parking services have greater value when the natural gas futures market is in contango (a positive time period price spread, meaning that current price quotes for delivery of natural gas further in the future are higher than in the nearer term), while its lending service has greater value when the futures market is backwardated (a negative time period price spread, meaning that current price quotes for delivery of natural gas in the nearer term are higher than further in the future). The value of both storage and PAL services may also be favorably impacted by increased volatility in the price of natural gas, which allows Boardwalk Pipeline to optimize the value of its storage and PAL capacity.

Boardwalk Pipeline also transports and stores NGLs. Contracts for Boardwalk Pipeline’s NGLs services are generally fee based or based on minimum volume requirements, while others are dependent on actual volumes transported. Boardwalk Pipeline’s NGLs storage rates are market-based and contracts are typically fixed price arrangements with escalation clauses. Boardwalk Pipeline is not in the business of buying and selling natural gas and NGLs other than for system management purposes, but changes in natural gas and NGLs prices may impact the volumes of natural gas or NGLs transported and stored by customers on its systems. Due to the capital intensive nature of its business, Boardwalk Pipeline’s operating costs and expenses typically do not vary significantly based upon the amount of products transported, with the exception of fuel consumed at its compressor stations and not included in a fuel tracker.

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Firm Transportation Agreements

A substantial portion of Boardwalk Pipeline’s transportation capacity is contracted for under firm transportation agreements. The table below sets forth the approximate expected revenues from capacity reservation and minimum bill charges under committed firm transportation agreements in place as of December 31, 2017, for 2018 and 2019, as well as the actual comparative amount recognized in revenues for 2017. The table does not include additional revenues Boardwalk Pipeline has recognized and may receive under firm transportation agreements based on actual utilization of the contracted pipeline capacity, any expected revenues for periods after the expiration dates of the existing agreements, execution of precedent agreements associated with growth projects or other events that occurred or will occur subsequent to December 31, 2017.

As of December 31, 2017
(In millions)
2017$1,070
2018970
2019950

In the third quarter of 2017, Boardwalk Pipeline executed an agreement regarding capacity on its Fayetteville and Greenville Laterals with Southwestern Energy Company (“Southwestern”), the largest firm transportation customer on those laterals. The agreement, which was approved by the FERC, but is subject to a rehearing request filed with the FERC by Fayetteville Express Pipeline LLC, reduces contracted volumes (or the amount of capacity under contract) on the Fayetteville Lateral for the remaining contract term and commits Southwestern to new firm transportation agreements on its Fayetteville and Greenville Laterals that begin January 1, 2021, and expire on December 31, 2030, and to an interim agreement on the Greenville Lateral from April of 2019 through 2020. The agreement also provides Boardwalk Pipeline the opportunity to transport natural gas produced from committed properties in the Fayetteville and Moorefield shales that are connected to its Fayetteville Lateral through 2030. Although the transaction will result in a reduction of firm transportation reservation revenues of approximately $70 million from 2017 to 2020, including reductions in 2018 and 2019 of approximately $44 million and $15 million, it provides longer-term revenue generation by adding ten years of firm transportation service commitments on both laterals and offers potential additional commodity fee revenue from Southwestern’s volume commitment.

The table below shows a reconciliation of the actual committed firm transportation revenues for 2017 and expected revenues under committed firm transportation agreements for 2018 from the table shown above to the amounts disclosed in the Results of Operations – Boardwalk Pipeline section of our MD&A included under Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2016, taking into account the Southwestern transaction discussed above, the sale of a processing plant and related assets in the second quarter of 2017 discussed in Note 6 of the Notes to Consolidated Financial Statements included under Item 8 and contracts entered into since December 31, 2016. The table does not include additional revenues Boardwalk Pipeline has recognized and may receive under firm transportation agreements based on actual utilization of the contracted pipeline capacity, any expected revenues for periods after the expiration dates of the existing agreements, execution of precedent agreements associated with growth projects or other events that occurred or will occur subsequent to December 31, 2017.

As of December 31, 2017
20172018
(In millions)
Expected revenues under committed firm transportation agreements as reported in our 2016 Annual Report on Form 10-K$1,055$975
Adjustments for:
Southwestern contract restructuring(7)(44)
Sale of processing plant and related assets(5)(8)
Firm transportation agreements entered into in 20172747
Actual/expected revenues under committed firm transportation agreements$1,070$970
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In the 2018 to 2020 timeframe, the agreements associated with the East Texas to Mississippi Pipeline, Southeast Expansion, Gulf Crossing Pipeline and Fayetteville and Greenville Laterals, which were placed into service in 2008 and 2009, will expire. These projects were large, new pipeline expansions, developed to serve growing production in Texas, Oklahoma, Arkansas and Louisiana and anchored primarily by ten-year firm transportation agreements with producers. Since these projects went into service, gas production from the Utica and Marcellus area in the Northeast has grown significantly and has altered the flow patterns of natural gas in North America. Over the last few years, gas production from other basins such as Barnett and Fayetteville, which primarily supported two of these expansions, has declined because the production economics in those basins are not as competitive as other production basins. These market dynamics have resulted in less production from certain basins tied to Boardwalk Pipeline’s system and a narrowing of basis differentials across portions of its pipeline systems, primarily for capacity associated with natural gas flows from west to east. Total revenues generated from these expansion projects’ capacity will be materially lower when these contracts expire. For example, as shown directly above, revenues under committed firm transportation agreements for 2018 are expected to be approximately $100 million lower than the actual amount for 2017. This reduction is mainly a result of (i) expansion contracts on the Gulf South system that expired in early 2018, which comprises approximately 60% of the $100 million reduction of revenues, and (ii) the Southwestern contract restructuring, which is responsible for the remaining 40% reduction. While some of the Gulf South capacity has been remarketed at lower rates and for shorter terms, Boardwalk Pipeline believes that the current market rates are not indicative of the long-term value of that capacity. Boardwalk Pipeline continues to focus its marketing efforts on enhancing the value of the remaining expansion capacity and is working with customers to match gas supplies from various basins to new and existing customers and markets, including aggregating supplies at key locations along its pipelines to provide end-use customers with attractive and diverse supply options.

Partially as a result of the increase in overall gas supplies, demand markets, primarily in the Gulf Coast area, are growing due to new natural gas export facilities, power plants and petrochemical facilities and increased exports to Mexico. These developments have resulted in significant growth projects for Boardwalk Pipeline. As of December 31, 2017, Boardwalk Pipeline has placed several growth projects into service since 2016 and has additional growth projects under development that are expected to be fully placed into service through the end of 2020. These projects have lengthy planning and construction periods. As a result, these projects will not contribute to Boardwalk Pipeline’s earnings and cash flows until they are fully placed into service. The revenues that are expected to be realized in 2018 and 2019 from these growth projects are included in the estimates of expected revenues from capacity reservation and minimum bill charges under committed firm transportation agreements shown above.

Pipeline System Maintenance

Boardwalk Pipeline incurs substantial costs for ongoing maintenance of its pipeline systems and related facilities, including those incurred for pipeline integrity management activities, equipment overhauls, general upkeep and repairs. These costs are not dependent on the amount of revenues earned from its transportation services. The Pipeline and Hazardous Materials Safety Administration (“PHMSA”) has developed regulations that require transportation pipeline operators to implement integrity management programs to comprehensively evaluate certain areas along pipelines and take additional measures to protect pipeline segments located in highly populated areas. These regulations have resulted in an overall increase in ongoing maintenance costs, including maintenance capital and maintenance expense. PHMSA has proposed more prescriptive regulations related to operations of Boardwalk Pipeline’s interstate natural gas and NGLs pipelines which, if adopted as proposed, will cause Boardwalk Pipeline to incur increased capital and operating costs, experience operational delays and result in potential adverse impacts to its ability to reliably serve its customers. While these proposed regulations have not yet been finalized, they are representative of the types of regulatory changes that can be enacted which would affect Boardwalk Pipeline’s operations and the cost of operating its facilities.

Maintenance costs may be capitalized or expensed, depending on the nature of the activities. For any given reporting period, the mix of projects that Boardwalk Pipeline undertakes will affect the amounts it records as property, plant and equipment on its balance sheet or recognize as expenses, which impacts Boardwalk Pipeline’s earnings. In 2018, Boardwalk Pipeline expects to spend approximately $320 million to maintain its pipeline systems, of which approximately $120 million is expected to be maintenance capital. In 2017, Boardwalk Pipeline spent $342 million, of which $138 million was recorded as maintenance capital.

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Results of Operations

The following table summarizes the results of operations for Boardwalk Pipeline for the years ended December 31, 2017, 2016 and 2015 as presented in Note 19 of the Notes to Consolidated Financial Statements included under Item 8:

Year Ended December 31201720162015
(In millions)
Revenues:
Other revenue, primarily operating$ 1,325$ 1,316$ 1,253
Net investment income1
Total1,3251,3161,254
Expenses:
Operating861835851
Interest171183176
Total1,0321,0181,027
Income before income tax293298227
Income tax (expense) benefit232(61)(46)
Amounts attributable to noncontrolling interests(145)(148)(107)
Net income attributable to Loews Corporation$ 380$ 89$ 74

2017 Compared with 2016

Total revenues increased $9 million in 2017 as compared with 2016. Excluding the net effect of $13 million of proceeds received from the settlement of a legal matter in 2016 and items offset in fuel and transportation expense, primarily retained fuel, operating revenues increased $44 million. The increase was driven by growth projects recently placed into service, partially offset by a decrease in storage and PAL revenues, primarily from the effects of unfavorable market conditions on time period price spreads and a decrease in revenues associated with the sale of a processing plant, discussed in Note 6 of the Notes to Consolidated Financial Statements under Item 8, and the Southwestern contract restructuring.

Operating expenses increased $26 million in 2017 as compared with 2016. Excluding items offset in operating revenues and the $47 million loss on sale of a processing plant, operating expenses decreased $5 million primarily due to lower administrative and general expenses due to higher capitalization rates from the increase in capital projects and lower employee incentive costs, largely offset by higher operations and maintenance expenses, primarily due to growth projects recently placed into service and a higher number of maintenance projects. Interest expense decreased $12 million primarily due to higher capitalized interest from growth projects.

As a result of the Tax Act, we recorded a one-time decrease to income tax expense of $294 million at the holding company level. This decrease was a result of remeasuring the net deferred tax liabilities at the lower corporate tax rate.

Net income increased $291 million in 2017 as compared with 2016, primarily due to the changes discussed above.

2016 Compared with 2015

Total revenues increased $62 million in 2016 as compared with 2015. Excluding the net effect of $13 million of proceeds received from the settlement of a legal matter in 2016, $9 million of proceeds received from a business interruption claim in 2015 and items offset in fuel and transportation expense, primarily retained fuel, operating revenues increased $83 million. The increase was driven by an increase in transportation revenues of $71 million, which resulted primarily from growth projects placed into service, incremental revenues from the Gulf South rate case of $18 million and a full year of revenues from the Evangeline pipeline. Storage and PAL revenues were higher by $17 million primarily from the effects of favorable market conditions on time period price spreads.

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Operating expenses decreased $16 million in 2016 as compared with 2015. Excluding receipt of a franchise tax refund of $10 million in 2015 and items offset in operating revenues, operating costs and expenses increased $5 million primarily due to higher employee related costs, partially offset by decreases in maintenance activities and depreciation expense. Interest expense increased $7 million primarily due to higher average interest rates compared to 2015.

Net income increased $15 million in 2016 as compared with 2015, primarily reflecting higher revenues and lower operating expenses, partially offset by higher interest expense as discussed above.

Loews Hotels & Co

The following table summarizes the results of operations for Loews Hotels & Co for the years ended December 31, 2017, 2016 and 2015 as presented in Note 19 of the Notes to Consolidated Financial Statements included under Item 8:

Year Ended December 31201720162015
(In millions)
Revenues:
Operating revenue$ 577$ 557$ 527
Revenues related to reimbursable expenses10511077
Total682667604
Expenses:
Operating502489467
Reimbursable expenses10511077
Depreciation636354
Equity income from joint ventures(81)(41)(43)
Interest282421
Total617645576
Income before income tax652228
Income tax expense(1)(10)(16)
Net income attributable to Loews Corporation$ 64$ 12$ 12

2017 Compared with 2016

Operating revenues increased $20 million and operating expenses increased $13 million in 2017 as compared with 2016 primarily due to an increase in revenue and expenses upon completion of renovations at the Loews Miami Beach Hotel.

Equity income from joint ventures increased $40 million in 2017 as compared with 2016 primarily due to a $25 million gain on the sale of an equity interest in the Loews Don CeSar Hotel, a joint venture hotel property, in February of 2017, increased equity income from Universal Orlando joint venture properties and the absence of a $13 million impairment charge related to an equity interest in a joint venture hotel property in the 2016 period. These increases were partially offset by a $15 million impairment charge in 2017 related to an equity interest in a joint venture hotel property.

Interest expense increased $4 million in 2017 as compared with 2016 primarily due to property-level debt incurred to fund acquisitions in 2016 along with reduced capitalized interest.

Loews Hotels & Co recorded a $27 million decrease to income tax expense resulting from the effect of the lower U.S. federal corporate tax rate on its net deferred tax liabilities.

Net income increased $52 million primarily due to the changes discussed above.

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2016 Compared with 2015

Operating revenues increased $30 million in 2016 as compared with 2015 primarily due to the acquisition of one hotel during 2016 and the acquisition of two hotels during 2015, partially offset by a decrease in revenue at the Loews Miami Beach Hotel due to renovations during 2016.

Operating and depreciation expenses increased $22 million and $9 million in 2016 as compared with 2015 primarily due to the acquisition of one hotel during 2016 and the acquisition of two hotels during 2015.

Equity income from joint ventures in 2016 was impacted by costs associated with opening one new hotel during 2016 and the $13 million impairment of an equity interest in a joint venture hotel property.

Interest expense increased $3 million in 2016 as compared with 2015 primarily due to new property-level debt incurred to fund acquisitions.

Net income was consistent in 2016 as compared with 2015 due to the increases in revenues and expenses discussed above.

Corporate

Corporate operations consist primarily of investment income at the Parent Company, operating results of Consolidated Container since the May 22, 2017 acquisition date, corporate interest expenses and other corporate administrative costs. Investment income includes earnings on cash and short term investments held at the Parent Company to meet current and future liquidity needs, as well as results of limited partnership investments and the trading portfolio.

The following table summarizes the results of operations for Corporate for the years ended December 31, 2017, 2016 and 2015 as presented in Note 19 of the Notes to Consolidated Financial Statements included under Item 8:

Year Ended December 31201720162015
(In millions)
Revenues:
Net investment income$ 146$ 146$ 22
Other revenues49936
Total64514928
Expenses:
Operating618131116
Interest957274
Total713203190
Loss before income tax(68)(54)(162)
Income tax benefit141959
Net loss attributable to Loews Corporation$ (54)$ (35)$ (103)

2017 Compared with 2016

Net investment income was flat in 2017 as compared with 2016 primarily due to improved performance from limited partnership investments offset by lower results from equity based investments in the trading portfolio.

Other revenues increased $496 million in 2017 as compared with 2016 primarily due to $498 million of revenue from Consolidated Container’s operations for the period since the acquisition date.

Operating expenses increased $487 million in 2017 as compared with 2016 primarily due to $479 million of expenses for Consolidated Container’s operations for the period since the acquisition date. In addition, operating expenses increased due to costs related to the acquisition of Consolidated Container, partially offset by the absence of prior year expenses related to the implementation of the 2016 Incentive Compensation Plan. Interest expense

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increased $23 million in 2017 as compared with 2016 primarily due to interest expense associated with Consolidated Container’s $605 million term loan from the date of acquisition.

Corporate recorded an $8 million increase to income tax expense resulting from the effect of the lower corporate tax rate on net deferred tax assets.

Net results decreased $19 million in 2017 as compared with 2016 primarily due to the changes discussed above.

2016 Compared with 2015

Net investment income increased $124 million in 2016 as compared with 2015 primarily due to improved performance of equity based investments and fixed income investments in the trading portfolio and improved results from limited partnership investments.

Operating expenses increased $15 million in 2016 as compared with 2015 primarily due to expenses related to the 2016 Incentive Compensation Plan, which was approved by shareholders on May 10, 2016.

Net results improved $68 million in 2016 as compared with 2015 primarily due to the changes discussed above.

LIQUIDITY AND CAPITAL RESOURCES

Parent Company

Parent Company cash and investments, net of receivables and payables, at December 31, 2017 totaled $4.9 billion, as compared to $5.0 billion at December 31, 2016. In 2017, we received $804 million in dividends from our subsidiaries, including a special dividend from CNA of $485 million. Cash outflows included the payment of $620 million to fund the acquisition of Consolidated Container, which was in addition to approximately $600 million of debt financing proceeds at the subsidiary level as discussed in Note 11 of the Notes to Consolidated Financial Statements included under Item 8. In addition, cash outflows included the payment of $84 million of cash dividends to our shareholders and $216 million to fund treasury stock purchases. As a holding company we depend on dividends from our subsidiaries and returns on our investment portfolio to fund our obligations. We are not responsible for the liabilities and obligations of our subsidiaries and there are no Parent Company guarantees.

As of February 2, 2018, there were 328,825,271 shares of Loews common stock outstanding. Depending on market and other conditions, we may purchase our shares and shares of our subsidiaries’ outstanding common stock in the open market or otherwise. In 2017, we purchased 4.8 million shares of Loews common stock. As of February 9, 2018, we had purchased an additional 4.3 million shares of Loews common stock in 2018 at an aggregate cost of $218 million. We have an effective Registration Statement on Form S-3 on file with the Securities and Exchange Commission (“SEC”) registering the future sale of an unlimited amount of our debt and equity securities.

In April of 2017, Fitch Ratings, Inc. affirmed our unsecured debt rating at A, with the rating outlook revised to negative from stable and in June of 2017, S&P Global Ratings (“S&P”) lowered our corporate credit and senior debt ratings from A+ to A with a stable outlook. Our current unsecured debt rating is A3 for Moody’s Investors Service, Inc. (“Moody’s”), with a stable outlook. Should one or more rating agencies downgrade our credit ratings from current levels, or announce that they have placed us under review for a potential downgrade, our cost of capital could increase and our ability to raise new capital could be adversely affected.

Future uses of our cash may include investing in our subsidiaries, new acquisitions, dividends and/or repurchases of our and our subsidiaries’ outstanding common stock.

Subsidiaries

CNA’s cash provided by operating activities was $1.3 billion in 2017 and $1.4 billion in 2016. Cash provided by operating activities in 2017 reflected higher net claim payments and a lower level of distributions on limited partnerships, partially offset by lower IT spend and an increase in premiums collected. In 2016, cash provided by

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operating activities reflected lower income taxes paid and increased receipts relating to returns on limited partnerships offset by higher net claim and expense payments.

CNA paid dividends of $3.10 per share on its common stock, including a special dividend of $2.00 per share in 2017. On February 9, 2018, CNA’s Board of Directors declared a quarterly dividend of $0.30 per share and a special dividend of $2.00 per share payable March 14, 2018 to shareholders of record on February 26, 2018. CNA’s declaration and payment of future dividends is at the discretion of its Board of Directors and will depend on many factors, including CNA’s earnings, financial condition, business needs and regulatory constraints. The payment of dividends by CNA’s insurance subsidiaries without prior approval of the insurance department of each subsidiary’s domiciliary jurisdiction is limited by formula. Dividends in excess of these amounts are subject to prior approval by the respective state insurance departments.

Dividends from Continental Casualty Company (“CCC”), a subsidiary of CNA, are subject to the insurance holding company laws of the State of Illinois, the domiciliary state of CCC. Under these laws, ordinary dividends, or dividends that do not require prior approval by the Illinois Department of Insurance (the “Department”), are determined based on the greater of the prior year’s statutory net income or 10% of statutory surplus as of the end of the prior year, as well as timing and amount of dividends paid in the preceding 12 months. Additionally, ordinary dividends may only be paid from earned surplus, which is calculated by removing unrealized gains from unassigned surplus. As of December 31, 2017, CCC is in a positive earned surplus position. The maximum allowable dividend CCC could pay during 2018 that would not be subject to the Department’s prior approval is $1.1 billion, less dividends paid during the preceding 12 months measured at that point in time. CCC paid dividends of $955 million in 2017. The actual level of dividends paid in any year is determined after an assessment of available dividend capacity, holding company liquidity and cash needs as well as the impact the dividends will have on the statutory surplus of the applicable insurance company.

Diamond Offshore’s cash provided by operating activities decreased approximately $153 million in 2017 as compared with 2016, primarily due to lower cash receipts from contract drilling services of $245 million and higher taxes paid, net of refunds of $26 million, partially offset by a $119 million net decrease in cash payments for contract drilling and general and administrative expenses, including personnel-related, maintenance and other rig operating costs. The decline in cash receipts and cash payments related to the performance of contract drilling services reflects continued depressed market conditions in the offshore drilling industry, as well as positive results from focusing on controlling costs.

For 2018, Diamond Offshore has budgeted approximately $220 million for capital expenditures. Diamond Offshore has no other purchase obligations for major rig upgrades at December 31, 2017.

As of December 31, 2017, Diamond Offshore had no outstanding borrowings under its credit agreement and was in compliance with all covenant requirements thereunder. As of February 9, 2018, Diamond Offshore had no outstanding borrowings and $1.5 billion available under its credit agreement to provide short term liquidity for payment obligations.

In July of 2017, Moody’s downgraded Diamond Offshore’s corporate credit rating to Ba3 with a negative outlook from Ba2 with a stable outlook. In October of 2017, S&P downgraded Diamond Offshore’s corporate credit rating to B+ from BB- with a negative outlook. Market conditions and other factors, many of which are outside of Diamond Offshore’s control, could cause its credit ratings to be lowered further. Any downgrade in Diamond Offshore’s credit ratings could adversely impact its cost of issuing additional debt and the amount of additional debt that it could issue, and could further restrict its access to capital markets and its ability to raise funds by issuing additional debt. As a consequence, Diamond Offshore may not be able to issue additional debt in amounts and/or with terms that it considers to be reasonable. One or more of these occurrences could limit Diamond Offshore’s ability to pursue other business opportunities.

Diamond Offshore will make periodic assessments of its capital spending programs based on industry conditions and will make adjustments if it determines they are required. Diamond Offshore, may, from time to time, issue debt or equity securities, or a combination thereof, to finance capital expenditures, the acquisition of assets and businesses or for general corporate purposes. Diamond Offshore’s ability to access the capital markets by issuing

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debt or equity securities will be dependent on its results of operations, current financial condition, current credit ratings, current market conditions and other factors beyond its control.

Boardwalk Pipeline’s cash provided by operating activities increased $36 million in 2017 compared to 2016, primarily due to increased net income, excluding the effects of non-cash items such as depreciation, amortization and the loss on the sale of operating assets. This increase also reflects the settlement of the Gulf South rate refund in 2016.

In 2017 and 2016, Boardwalk Pipeline declared and paid distributions to its common unitholders of record of $0.40 per common unit and an amount to the general partner on behalf of its 2% general partner interest. In February of 2018, the Partnership declared a quarterly cash distribution to unitholders of record of $0.10 per common unit.

As of February 13, 2018, Boardwalk Pipeline had $445 million of outstanding borrowings under its revolving credit facility. During 2017, Boardwalk Pipeline extended the maturity date of its revolving credit facility by one year to May 26, 2022. Boardwalk Pipeline has a subordinated loan agreement with a subsidiary of the Company under which it could borrow up to $300 million until December 31, 2018. As of February 13, 2018, Boardwalk Pipeline had no outstanding borrowings under the subordinated loan agreement.

For 2017 and 2016, Boardwalk Pipeline’s capital expenditures were $708 million and $590 million, consisting of a combination of growth and maintenance capital. Boardwalk Pipeline expects total capital expenditures to be approximately $550 million in 2018 related to growth projects and pipeline system maintenance expenditures.

Boardwalk Pipeline anticipates that for 2018 its existing capital resources, including its revolving credit facility, subordinated loan and cash flows from operating activities, will be adequate to fund its operations. Boardwalk Pipeline may seek to access the capital markets to fund some or all capital expenditures for growth projects, acquisitions or for general business purposes. Boardwalk Pipeline’s ability to access the capital markets for equity and debt financing under reasonable terms depends on its current financial condition, current credit ratings and current market conditions.

Off-Balance Sheet Arrangements

At December 31, 2017 and 2016, we did not have any off-balance sheet arrangements.

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Contractual Obligations

Our contractual payment obligations are as follows:

Payments Due by Period
Less thanMore than
December 31, 2017Total1 year1-3 years3-5 years5 years
(In millions)
Debt (a)$16,749$1,000$2,021$2,488$11,240
Operating leases72976141128384
Claim and claim adjustment expense reserves (b)23,4785,2466,4313,3478,454
Future policy benefit reserves (c)28,160(439)(258)41328,444
Purchase and other obligations980460143138239
Total (d)$70,096$6,343$8,478$6,514$48,761
(a)Includes estimated future interest payments.
(b)Claim and claim adjustment expense reserves are not discounted and represent CNA’s estimate of the amount and timing of the ultimate settlement and administration of gross claims based on its assessment of facts and circumstances known as of December 31, 2017. See the Insurance Reserves section of this MD&A for further information.
(c)Future policy benefit reserves are not discounted and represent CNA’s estimate of the ultimate amount and timing of the settlement of benefits based on its assessment of facts and circumstances known as of December 31, 2017. Additional information on future policy benefit reserves is included in Note 1 of the Notes to Consolidated Financial Statements included under Item 8.
(d)Does not include expected contribution of approximately $26 million to the Company’s pension and postretirement plans in 2018.

Further information on our commitments, contingencies and guarantees is provided in the Notes to Consolidated Financial Statements included under Item 8.

INVESTMENTS

Investment activities of non-insurance subsidiaries primarily include investments in fixed income securities, including short term investments. The Parent Company portfolio also includes equity securities, including short sales and derivative instruments, and investments in limited partnerships. These types of investments generally present greater volatility, less liquidity and greater risk than fixed income investments and are included within Results of Operations – Corporate.

We enter into short sales and invest in certain derivative instruments that are used for asset and liability management activities, income enhancements to our portfolio management strategy and to benefit from anticipated future movements in the underlying markets. If such movements do not occur as anticipated, then significant losses may occur. Monitoring procedures include senior management review of daily reports of existing positions and valuation fluctuations to seek to ensure that open positions are consistent with our portfolio strategy.

Credit exposure associated with non-performance by counterparties to our derivative instruments is generally limited to the uncollateralized change in fair value of the derivative instruments recognized in the Consolidated Balance Sheets. We mitigate the risk of non-performance by monitoring the creditworthiness of counterparties and diversifying derivatives by using multiple counterparties. We occasionally require collateral from our derivative investment counterparties depending on the amount of the exposure and the credit rating of the counterparty.

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Insurance

CNA maintains a large portfolio of fixed maturity and equity securities, including large amounts of corporate and government issued debt securities, residential and commercial mortgage-backed securities, and other asset-backed securities and investments in limited partnerships which pursue a variety of long and short investment strategies across a broad array of asset classes. CNA’s investment portfolio supports its obligation to pay future insurance claims and provides investment returns which are an important part of CNA’s overall profitability.

Net Investment Income

The significant components of CNA’s net investment income are presented in the following table. Fixed income securities, as presented, include both fixed maturity and equity securities, which substantially consist of preferred stock.

Year Ended December 31201720162015
(In millions)
Taxable fixed income securities$1,397$1,424$1,387
Tax-exempt fixed income securities427405376
Total fixed income securities1,8241,8291,763
Limited partnership investments20715592
Other, net of investment expense34(15)
Pretax net investment income$2,034$1,988$1,840
Fixed income securities after tax and noncontrolling interests$1,185$1,186$1,146
Net investment income after tax and noncontrolling interests$1,308$1,280$1,192
Effective income yield for the fixed income securities portfolio, before tax4.7%4.8%4.7%
Effective income yield for the fixed income securities portfolio, after tax3.4%3.5%3.4%

Net investment income after tax and noncontrolling interests increased $28 million in 2017 as compared with 2016. The increase was driven by limited partnership investments, which returned 9.1% in 2017 as compared with 6.3% in the prior year.

Net investment income after tax and noncontrolling interests increased $88 million in 2016 as compared with 2015. The increase was driven by limited partnership investments, which returned 6.3% in 2016 as compared with 3.0% in the prior year. Income from fixed income securities increased by $40 million, after tax and noncontrolling interests, primarily due to an increase in the invested asset base and a charge in 2015 related to a change in estimate effected by a change in accounting principle.

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Net Realized Investment Gains (Losses)

The components of CNA’s net realized investment results are presented in the following table:

Year Ended December 31201720162015
(In millions)
Realized investment gains (losses):
Fixed maturity securities:
Corporate and other bonds$111$31$(55)
States, municipalities and political subdivisions1429(22)
Asset-backed(6)(2)10
Foreign government31
U.S. Treasury and obligations of government-sponsored enterprises35
Total fixed maturity securities12266(66)
Equity securities(5)(23)
Derivatives(4)(2)10
Short term investments and other438
Total realized investment gains (losses)12262(71)
Income tax (expense) benefit(40)(19)33
Amounts attributable to noncontrolling interests(9)(4)4
Net realized investment gains (losses) attributable to Loews Corporation$73$39$(34)

Net realized investment gains improved $34 million in 2017 as compared with 2016, primarily driven by lower OTTI losses recognized in earnings. Net realized investment results improved $73 million in 2016 as compared with 2015, driven by lower OTTI losses recognized in earnings and higher net realized investment gains on sales of securities. Further information on CNA’s realized gains and losses, including CNA’s OTTI losses and derivative gains (losses), as well as CNA’s impairment decision process, is set forth in Notes 1 and 3 of the Notes to Consolidated Financial Statements included under Item 8.

Portfolio Quality

The following table presents the estimated fair value and net unrealized gains (losses) of CNA’s fixed maturity securities by rating distribution:

December 31, 2017December 31, 2016
Estimated Fair ValueNet Unrealized Gains (Losses)Estimated Fair ValueNet Unrealized Gains (Losses)
(In millions)
U.S. Government, Government agencies and Government-sponsored enterprises$4,514$21$4,212$32
AAA1,9541521,881110
AA8,9829148,911750
A9,6439529,866832
BBB13,5541,09312,802664
Non-investment grade2,8401403,233156
Total$41,487$3,272$40,905$2,544

As of December 31, 2017 and 2016, only 2% of CNA’s fixed maturity portfolio was rated internally.

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The following table presents CNA’s available-for-sale fixed maturity securities in a gross unrealized loss position by ratings distribution:

December 31, 2017Estimated Fair ValueGross Unrealized Losses
(In millions)
U.S. Government, Government agencies and Government-sponsored enterprises$2,050$33
AAA1776
AA3635
A62911
BBB1,22622
Non-investment grade53010
Total$4,975$87

The following table presents the maturity profile for these available-for-sale fixed maturity securities. Securities not due to mature on a single date are allocated based on weighted average life:

December 31, 2017Estimated Fair ValueGross Unrealized Losses
(In millions)
Due in one year or less$85$2
Due after one year through five years1,07919
Due after five years through ten years3,36357
Due after ten years4489
Total$4,975$87

Duration

A primary objective in the management of CNA’s investment portfolio is to optimize return relative to corresponding liabilities and respective liquidity needs. CNA’s views on the current interest rate environment, tax regulations, asset class valuations, specific security issuer and broader industry segment conditions and domestic and global economic conditions, are some of the factors that enter into an investment decision. CNA also continually monitors exposure to issuers of securities held and broader industry sector exposures and may from time to time adjust such exposures based on its views of a specific issuer or industry sector.

A further consideration in the management of CNA’s investment portfolio is the characteristics of the corresponding liabilities and the ability to align the duration of the portfolio to those liabilities and to meet future liquidity needs, minimize interest rate risk and maintain a level of income sufficient to support the underlying insurance liabilities. For portfolios where future liability cash flows are determinable and typically long term in nature, CNA segregates investments for asset/liability management purposes. The segregated investments support the long term care and structured settlement liabilities in Other Insurance Operations.

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The effective durations of CNA’s fixed maturity securities, non-redeemable preferred stock and short term investments are presented in the following table. Amounts presented are net of payable and receivable amounts for securities purchased and sold, but not yet settled.

December 31, 2017December 31, 2016
Estimated Fair ValueEffective Duration (In Years)Estimated Fair ValueEffective Duration (In Years)
(In millions of dollars)
Investments supporting Other Insurance
Operations$16,7978.4$15,7248.7
Other investments26,8174.426,6694.6
Total$43,6145.9$42,3936.1

The duration of the total portfolio is aligned with the cash flow characteristics of the underlying liabilities.

The investment portfolio is periodically analyzed for changes in duration and related price risk. Additionally, CNA periodically reviews the sensitivity of the portfolio to the level of foreign exchange rates and other factors that contribute to market price changes. A summary of these risks and specific analysis on changes is included in the Quantitative and Qualitative Disclosures about Market Risk included under Item 7A.

Short Term Investments

The carrying value of the components of CNA’s Short term investments are presented in the following table:

December 3120172016
(In millions)
Short term investments:
Commercial paper$905$733
U.S. Treasury securities355433
Money market funds4444
Other132197
Total short term investments$1,436$1,407

INSURANCE RESERVES

The level of reserves CNA maintains represents its best estimate, as of a particular point in time, of what the ultimate settlement and administration of claims will cost based on CNA’s assessment of facts and circumstances known at that time. Reserves are not an exact calculation of liability but instead are complex estimates that CNA derives, generally utilizing a variety of actuarial reserve estimation techniques, from numerous assumptions and expectations about future events, both internal and external, many of which are highly uncertain. As noted below, CNA reviews its reserves for each segment of its business periodically, and any such review could result in the need to increase reserves in amounts which could be material and could adversely affect our results of operations and equity and CNA’s business and insurer financial strength and corporate debt ratings. Further information on reserves is provided in Note 8 of the Notes to Consolidated Financial Statements included under Item 8.

Property and Casualty Claim and Claim Adjustment Expense Reserves

CNA maintains loss reserves to cover its estimated ultimate unpaid liability for claim and claim adjustment expenses, including the estimated cost of the claims adjudication process, for claims that have been reported but not yet settled (case reserves) and claims that have been incurred but not reported (“IBNR”). IBNR includes a provision for development on known cases as well as a provision for late reported incurred claims. Claim and claim adjustment expense reserves are reflected as liabilities and are included on the Consolidated Balance Sheets under the heading “Insurance Reserves.” Adjustments to prior year reserve estimates, if necessary, are reflected in results

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of operations in the period that the need for such adjustments is determined. The carried case and IBNR reserves as of each balance sheet date are provided in the discussion that follows and in Note 8 of the Notes to Consolidated Financial Statements included under Item 8.

There is a risk that CNA’s recorded reserves are insufficient to cover its estimated ultimate unpaid liability for claims and claim adjustment expenses. Unforeseen emerging or potential claims and coverage issues are difficult to predict and could materially adversely affect the adequacy of CNA’s claim and claim adjustment expense reserves and could lead to future reserve additions.

In addition, CNA’s property and casualty insurance subsidiaries also have actual and potential exposures related to A&EP claims, which could result in material losses. To mitigate the risks posed by CNA’s exposure to A&EP claims and claim adjustment expenses, CNA completed a transaction with National Indemnity Company (“NICO”), under which substantially all of CNA’s legacy A&EP liabilities were ceded to NICO effective January 1, 2010. See Note 8 of the Notes to the Consolidated Financial Statements included under Item 8 for further discussion about the transaction with NICO, its impact on CNA’s results of operations and the deferred retroactive reinsurance gain.

Establishing Property & Casualty Reserve Estimates

In developing claim and claim adjustment expense (“loss” or “losses”) reserve estimates, CNA’s actuaries perform detailed reserve analyses that are staggered throughout the year. The data is organized at a reserve group level. A reserve group can be a line of business covering a subset of insureds such as commercial automobile liability for small or middle market customers, it can encompass several lines of business provided to a specific set of customers such as aging services, or it can be a particular type of claim such as construction defect. Every reserve group is reviewed at least once during the year. The analyses generally review losses gross of ceded reinsurance and apply the ceded reinsurance terms to the gross estimates to establish estimates net of reinsurance. In addition to the detailed analyses, CNA reviews actual loss emergence for all products each quarter.

Most of CNA’s business can be characterized as long-tail. For long-tail business, it will generally be several years between the time the business is written and the time when all claims are settled. CNA’s long-tail exposures include commercial automobile liability, workers’ compensation, general liability, medical professional liability, other professional liability and management liability coverages, assumed reinsurance run-off and products liability. Short-tail exposures include property, commercial automobile physical damage, marine, surety and warranty. Property and Casualty Operations contain both long-tail and short-tail exposures. Other Insurance Operations contain long-tail exposures.

Various methods are used to project ultimate losses for both long-tail and short-tail exposures.

The paid development method estimates ultimate losses by reviewing paid loss patterns and applying them to accident or policy years with further expected changes in paid losses. Selection of the paid loss pattern may require consideration of several factors including the impact of inflation on claims costs, the rate at which claims professionals make claim payments and close claims, the impact of judicial decisions, the impact of underwriting changes, the impact of large claim payments and other factors. Claim cost inflation itself may require evaluation of changes in the cost of repairing or replacing property, changes in the cost of medical care, changes in the cost of wage replacement, judicial decisions, legislative changes and other factors. Because this method assumes that losses are paid at a consistent rate, changes in any of these factors can affect the results. Since the method does not rely on case reserves, it is not directly influenced by changes in their adequacy.

For many reserve groups, paid loss data for recent periods may be too immature or erratic for accurate predictions. This situation often exists for long-tail exposures. In addition, changes in the factors described above may result in inconsistent payment patterns. Finally, estimating the paid loss pattern subsequent to the most mature point available in the data analyzed often involves considerable uncertainty for long-tail products such as workers’ compensation.

The incurred development method is similar to the paid development method, but it uses case incurred losses instead of paid losses. Since the method uses more data (case reserves in addition to paid losses) than the paid development method, the incurred development patterns may be less variable than paid patterns. However, selection of the incurred loss pattern typically requires analysis of all of the same factors described above. In addition, the

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inclusion of case reserves can lead to distortions if changes in case reserving practices have taken place, and the use of case incurred losses may not eliminate the issues associated with estimating the incurred loss pattern subsequent to the most mature point available.

The loss ratio method multiplies earned premiums by an expected loss ratio to produce ultimate loss estimates for each accident or policy year. This method may be useful for immature accident or policy periods or if loss development patterns are inconsistent, losses emerge very slowly, or there is relatively little loss history from which to estimate future losses. The selection of the expected loss ratio typically requires analysis of loss ratios from earlier accident or policy years or pricing studies and analysis of inflationary trends, frequency trends, rate changes, underwriting changes and other applicable factors.

The Bornhuetter-Ferguson method using paid loss is a combination of the paid development method and the loss ratio method. This method normally determines expected loss ratios similar to the approach used to estimate the expected loss ratio for the loss ratio method and typically requires analysis of the same factors described above. This method assumes that future losses will develop at the expected loss ratio level. The percent of paid loss to ultimate loss implied from the paid development method is used to determine what percentage of ultimate loss is yet to be paid. The use of the pattern from the paid development method typically requires consideration of the same factors listed in the description of the paid development method. The estimate of losses yet to be paid is added to current paid losses to estimate the ultimate loss for each year. For long-tail lines, this method will react very slowly if actual ultimate loss ratios are different from expectations due to changes not accounted for by the expected loss ratio calculation.

The Bornhuetter-Ferguson method using incurred loss is similar to the Bornhuetter-Ferguson method using paid loss except that it uses case incurred losses. The use of case incurred losses instead of paid losses can result in development patterns that are less variable than paid patterns. However, the inclusion of case reserves can lead to distortions if changes in case reserving have taken place, and the method typically requires analysis of the same factors that need to be reviewed for the loss ratio and incurred development methods.

The frequency times severity method multiplies a projected number of ultimate claims by an estimated ultimate average loss for each accident or policy year to produce ultimate loss estimates. Since projections of the ultimate number of claims are often less variable than projections of ultimate loss, this method can provide more reliable results for reserve groups where loss development patterns are inconsistent or too variable to be relied on exclusively. In addition, this method can more directly account for changes in coverage that affect the number and size of claims. However, this method can be difficult to apply to situations where very large claims or a substantial number of unusual claims result in volatile average claim sizes. Projecting the ultimate number of claims may require analysis of several factors, including the rate at which policyholders report claims to CNA, the impact of judicial decisions, the impact of underwriting changes and other factors. Estimating the ultimate average loss may require analysis of the impact of large losses and claim cost trends based on changes in the cost of repairing or replacing property, changes in the cost of medical care, changes in the cost of wage replacement, judicial decisions, legislative changes and other factors.

Stochastic modeling produces a range of possible outcomes based on varying assumptions related to the particular reserve group being modeled. For some reserve groups, CNA uses models which rely on historical development patterns at an aggregate level, while other reserve groups are modeled using individual claim variability assumptions supplied by the claims department. In either case, multiple simulations using varying assumptions are run and the results are analyzed to produce a range of potential outcomes. The results will typically include a mean and percentiles of the possible reserve distribution which aid in the selection of a point estimate.

For many exposures, especially those that can be considered long-tail, a particular accident or policy year may not have a sufficient volume of paid losses to produce a statistically reliable estimate of ultimate losses. In such a case, CNA’s actuaries typically assign more weight to the incurred development method than to the paid development method. As claims continue to settle and the volume of paid loss increases, the actuaries may assign additional weight to the paid development method. For most of CNA’s products, even the incurred losses for accident or policy years that are early in the claim settlement process will not be of sufficient volume to produce a reliable estimate of ultimate losses. In these cases, CNA may not assign much if any weight to the paid and incurred development methods. CNA may use the loss ratio, Bornhuetter-Ferguson and/or frequency times severity methods. For short-tail

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exposures, the paid and incurred development methods can often be relied on sooner primarily because CNA’s history includes a sufficient number of years to cover the entire period over which paid and incurred losses are expected to change. However, CNA may also use the loss ratio, Bornhuetter-Ferguson and/or frequency times severity methods for short-tail exposures.

For other more complex reserve groups where the above methods may not produce reliable indications, CNA uses additional methods tailored to the characteristics of the specific situation.

Periodic Reserve Reviews

The reserve analyses performed by CNA’s actuaries result in point estimates. Each quarter, the results of the detailed reserve reviews are summarized and discussed with CNA’s senior management to determine the best estimate of reserves. CNA’s senior management considers many factors in making this decision. CNA’s recorded reserves reflect its best estimate as of a particular point in time based upon known facts and circumstances, consideration of the factors cited above and its judgment. The carried reserve differs from the actuarial point estimate as discussed further below.

Currently, CNA’s recorded reserves are modestly higher than the actuarial point estimate. For Property and Casualty Operations, the difference between CNA’s reserves and the actuarial point estimate is primarily driven by uncertainty with respect to immature accident years, claim cost inflation, changes in claims handling, changes to the tort environment which may adversely affect claim costs and the effects from the economy. For CNA’s legacy A&EP liabilities, the difference between CNA’s reserves and the actuarial point estimate is primarily driven by the potential tail volatility of run-off exposures.

The key assumptions fundamental to the reserving process are often different for various reserve groups and accident or policy years. Some of these assumptions are explicit assumptions that are required of a particular method, but most of the assumptions are implicit and cannot be precisely quantified. An example of an explicit assumption is the pattern employed in the paid development method. However, the assumed pattern is itself based on several implicit assumptions such as the impact of inflation on medical costs and the rate at which claim professionals close claims. As a result, the effect on reserve estimates of a particular change in assumptions typically cannot be specifically quantified, and changes in these assumptions cannot be tracked over time.

CNA’s recorded reserves are management’s best estimate. In order to provide an indication of the variability associated with CNA’s net reserves, the following discussion provides a sensitivity analysis that shows the approximate estimated impact of variations in significant factors affecting CNA’s reserve estimates for particular types of business. These significant factors are the ones that CNA believes could most likely materially affect the reserves. This discussion covers the major types of business for which CNA believes a material deviation to its reserves is reasonably possible. There can be no assurance that actual experience will be consistent with the current assumptions or with the variation indicated by the discussion. In addition, there can be no assurance that other factors and assumptions will not have a material impact on CNA’s reserves.

The three areas for which CNA believes a significant deviation to its net reserves is reasonably possible are (i) professional liability, management liability and surety products; (ii) workers’ compensation and (iii) general liability.

Professional liability, management liability and surety products include professional liability coverages provided to various professional firms, including architects, real estate agents, small and mid-sized accounting firms, law firms and other professional firms. They also include D&O, employment practices, fiduciary, fidelity and surety coverages, as well as insurance products serving the health care delivery system. The most significant factor affecting reserve estimates for these liability coverages is claim severity. Claim severity is driven by the cost of medical care, the cost of wage replacement, legal fees, judicial decisions, legislative changes and other factors. Underwriting and claim handling decisions such as the classes of business written and individual claim settlement decisions can also affect claim severity. If the estimated claim severity increases by 9%, CNA estimates that net reserves would increase by approximately $450 million. If the estimated claim severity decreases by 3%, CNA estimates that net reserves would decrease by approximately $150 million. CNA’s net reserves for these products were approximately $5.0 billion as of December 31, 2017.

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For workers’ compensation, since many years will pass from the time the business is written until all claim payments have been made, the most significant factor affecting workers’ compensation reserve estimate is claim cost inflation on claim payments. Workers’ compensation claim cost inflation is driven by the cost of medical care, the cost of wage replacement, expected claimant lifetimes, judicial decisions, legislative changes and other factors. If estimated workers’ compensation claim cost inflation increases by 100 basis points for the entire period over which claim payments will be made, CNA estimates that its net reserves would increase by approximately $350 million. If estimated workers’ compensation claim cost inflation decreases by 100 basis points for the entire period over which claim payments will be made, CNA estimates that its net reserves would decrease by approximately $350 million. Net reserves for workers’ compensation were approximately $4.0 billion as of December 31, 2017.

For general liability, the most significant factor affecting reserve estimates is claim severity. Claim severity is driven by changes in the cost of repairing or replacing property, the cost of medical care, the cost of wage replacement, judicial decisions, legislation and other factors. If the estimated claim severity for general liability increases by 6%, CNA estimates that its net reserves would increase by approximately $200 million. If the estimated claim severity for general liability decreases by 3%, CNA estimates that its net reserves would decrease by approximately $100 million. Net reserves for general liability were approximately $3.3 billion as of December 31, 2017.

Given the factors described above, it is not possible to quantify precisely the ultimate exposure represented by claims and related litigation. As a result, CNA regularly reviews the adequacy of its reserves and reassesses its reserve estimates as historical loss experience develops, additional claims are reported and settled and additional information becomes available in subsequent periods. In reviewing CNA’s reserve estimates, CNA makes adjustments in the period that the need for such adjustments is determined. These reviews have resulted in CNA’s identification of information and trends that have caused CNA to change its reserves in prior periods and could lead to CNA’s identification of a need for additional material increases or decreases in claim and claim adjustment expense reserves, which could materially affect our results of operations and equity and CNA’s business and insurer financial strength and corporate debt ratings positively or negatively. See Note 8 of the Notes to the Consolidated Financial Statements included under Item 8 for additional information about reserve development.

The following table summarizes gross and net carried reserves for CNA’s Property and Casualty Operations:

December 3120172016
(In millions)
Gross Case Reserves$6,913$7,164
Gross IBNR Reserves9,1569,207
Total Gross Carried Claim and Claim Adjustment Expense Reserves$16,069$16,371
Net Case Reserves$6,343$6,582
Net IBNR Reserves8,2328,328
Total Net Carried Claim and Claim Adjustment Expense Reserves$14,575$14,910
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The following table summarizes the gross and net carried reserves for other insurance businesses in run-off, including CNA Re and A&EP:

December 3120172016
(In millions)
Gross Case Reserves$1,371$1,524
Gross IBNR Reserves1,0651,090
Total Gross Carried Claim and Claim Adjustment Expense Reserves$2,436$2,614
Net Case Reserves$94$94
Net IBNR Reserves111136
Total Net Carried Claim and Claim Adjustment Expense Reserves$205$230

Long Term Care Policyholder Reserves

CNA’s Other Insurance Operations includes its run-off long term care business as well as structured settlement obligations not funded by annuities related to certain property and casualty claimants. Long term care policies provide benefits for nursing homes, assisted living facilities and home health care subject to various daily and lifetime caps. Generally, policyholders must continue to make periodic premium payments to keep the policy in force and CNA has the ability to increase policy premiums, subject to state regulatory approval.

CNA maintains both claim and claim adjustment expense reserves as well as future policy benefit reserves for policyholder benefits for its long term care business. Claim and claim adjustment expense reserves consist of estimated reserves for long term care policyholders that are currently receiving benefits, including claims that have been incurred but are not yet reported. In developing the claim and claim adjustment expense reserve estimates for CNA’s long term care policies, its actuaries perform a detailed claim experience study on an annual basis. The study reviews the sufficiency of existing reserves for policyholders currently on claim and includes an evaluation of expected benefit utilization and claim duration. CNA’s recorded claim and claim adjustment expense reserves reflect CNA management’s best estimate after incorporating the results of the most recent study. In addition, claim and claim adjustment expense reserves are also maintained for the structured settlement obligations.

Future policy benefit reserves represent the active life reserves related to CNA’s long term care policies and are the present value of expected future benefit payments and expenses less expected future premium. The determination of these reserves is fundamental to CNA’s financial results and requires management to make estimates and assumptions about expected investment and policyholder experience over the life of the contract. The assumptions used to determine the active life reserves were unlocked as of December 31, 2015 in connection with the recognition of a premium deficiency. Since many of these contracts may be in force for several decades, these assumptions are subject to significant estimation risk.

The actuarial assumptions that management believes are subject to the most variability are morbidity, persistency, discount rate and anticipated future premium rate increases. Persistency can be affected by policy lapses, benefit reductions and death. Discount rate is influenced by the investment yield on assets supporting long term care reserves which is subject to interest rate and market volatility and may also be affected by changes to the Internal Revenue Code. There is limited historical company and industry data available to CNA for long term care morbidity and mortality, as only a portion of the policies written to date are in claims paying status. As a result of this variability, CNA’s long term care reserves may be subject to material increases if actual experience develops adversely to its expectations.

Annually, management assesses the adequacy of its long term care future policy benefit reserves by performing a GPV to determine if there is a premium deficiency. Management also uses the GPV process to evaluate the adequacy of the claim and claim adjustment expense reserves for structured settlement obligations. Under the GPV, management estimates required reserves using best estimate assumptions as of the date of the assessment without provisions for adverse deviation. The GPV required reserves are then compared to the recorded reserves. If the GPV required reserves are greater than the existing recorded reserves, the existing assumptions are unlocked and future policy benefit reserves are increased to the greater amount. Any such increase is reflected in CNA’s results of

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operations in the period in which the need for such adjustment is determined, and could materially adversely affect our results of operations and equity and CNA’s business and insurer financial strength and corporate debt ratings. Periodically, CNA engages independent third parties to assess the appropriateness of its best estimate assumptions and the associated GPV required reserves. The most recent assessment by an independent third party was performed in 2017.

The December 31, 2017 GPV indicated recorded reserves included a margin of approximately $246 million. A summary of the changes in the estimated reserve margin is presented in the table below:

(In millions)
Long term care active life reserve - change in estimated reserve margin
December 31, 2016 estimated margin$255
Changes in underlying discount rate assumptions (excl. Tax Act)(270)
Changes in underlying discount rate assumptions (Tax Act impact)(1,048)
Changes in underlying morbidity assumptions972
Changes in underlying persistency assumptions(7)
Changes in underlying premium rate action assumptions157
Changes in underlying expense and other assumptions187
December 31, 2017 estimated margin$246

The decrease in the margin in 2017 was driven by the reduction in the U.S federal corporate income tax rate enacted on December 22, 2017 which reduced the tax equivalent yield on the tax exempt municipal bonds in the investment portfolio supporting the long term care liabilities. A continuation of the low interest rate environment also drove a reduction in the discount rate assumptions. These unfavorable drivers were mostly offset by favorable changes to the underlying morbidity assumptions, both frequency and severity, higher than expected rate increases on active rate action programs and favorable changes to the underlying expense assumptions.

The annual long term care claim experience study resulted in a release of $42 million from claim reserves driven by favorable frequency and severity relative to expectations.

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The table below summarizes the estimated pretax impact on CNA’s results of operations from various hypothetical revisions to CNA’s active life reserve assumptions. The annual GPV process involves updating all assumptions to the then current best estimate, and historically all significant assumptions have been revised each year. In the hypothetical revisions table below, CNA has assumed that revisions to such assumptions would occur in each policy type, age and duration within each policy group and would occur absent any changes, mitigating or otherwise, in the other assumptions. Although such hypothetical revisions are not currently required or anticipated, CNA believes they could occur based on past variances in experience and its expectations of the ranges of future experience that could reasonably occur. Any required increase in the recorded reserves resulting from the hypothetical revision in the table below would first reduce the margin in CNA’s carried reserves before it would affect results of operations. Any actual adjustment would be dependent on the specific policies affected and, therefore, may differ from the estimate summarized below. The estimated impacts to results of operations in the table below are after consideration of the existing margin.

December 31, 2017Estimated Reduction to Pretax Income
(In millions)
Hypothetical revisions
Morbidity:
5% increase in morbidity$408
10% increase in morbidity1,061
Persistency:
5% decrease in active life mortality and lapse$-
10% decrease in active life mortality and lapse219
Discount rates:
50 basis point decline in future interest rates$161
100 basis point decline in future interest rates633
Premium rate actions:
50% decrease in anticipated future rate increases premium$-

As reflected in the long term care active life reserve - change in estimated reserve margin table on the preceding page, the reduction in the U.S federal corporate income tax rate adversely affected the value of the tax benefit received on tax exempt municipal investments and thus the rate at which CNA discounts its long term care active life reserves. Any future reduction in income tax rates could further adversely affect CNA’s GPV discount rates.

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The following table summarizes policyholder reserves for CNA’s long term care operations:

December 31, 2017Claim and claim adjustment expensesFuture policy benefitsTotal
(In millions)
Long term care$2,568$8,959$11,527
Structured settlement annuities547547
Other1616
Total3,1318,95912,090
Shadow adjustments (a)1591,9902,149
Ceded reserves (b)209230439
Total gross reserves$3,499$11,179$14,678
December 31, 2016
Long term care$2,426$8,654$11,080
Structured settlement annuities565565
Other1717
Total3,0088,65411,662
Shadow adjustments (a)1011,4591,560
Ceded reserves (b)249213462
Total gross reserves$3,358$10,326$13,684
(a)To the extent that unrealized gains on fixed income securities supporting long term care products and annuity contracts would result in a premium deficiency if those gains were realized an increase in Insurance reserves is recorded, after tax and noncontrolling interests, as a reduction of net unrealized gains through Other comprehensive income (“Shadow Adjustments”).
(b)Ceded reserves relate to claim or policy reserves fully reinsured in connection with a sale or exit from the underlying business.

CATASTROPHE REINSURANCE

Group North American Property Treaty

CNA purchases corporate catastrophe excess-of-loss treaty reinsurance covering its U.S. states and territories and Canadian property exposures underwritten in its North American and non-Lloyd’s European companies. The treaty has a term of January 1, 2018 to December 31, 2018. The 2018 treaty provides coverage for the accumulation of losses from catastrophe occurrences above CNA’s per occurrence retention of $250 million up to $1.0 billion, with 10% co-participation on the first $650 million above the retention and 20% co-participation on the top $100 million layer. Losses stemming from terrorism events are covered unless they are due to a nuclear, biological or chemical attack. All layers of the treaty provide for one full reinstatement.

Group Workers Compensation Treaty

CNA also purchases corporate Workers Compensation catastrophe excess-of-loss treaty reinsurance for the period January 1, 2018 to December 31, 2018 providing $275 million of coverage for the accumulation of covered losses related to natural catastrophes above CNA’s retention of $25 million. The treaty provides $475 million of coverage for the accumulation of covered losses related to terrorism events above CNA’s retention of $25 million. Of the $475 million in terrorism coverage, $200 million is provided for nuclear, biological, chemical and radiation events. One full reinstatement is available for the first $275 million above the retention, regardless of the covered peril. CNA purchases a targeted facultative facility to address exposure accumulations in specific peak terrorism zones.

CRITICAL ACCOUNTING ESTIMATES

The preparation of the Consolidated Financial Statements in conformity with GAAP requires us to make estimates and assumptions that affect the amounts reported in the Consolidated Financial Statements and the related notes. Actual results could differ from those estimates.

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The Consolidated Financial Statements and accompanying notes have been prepared in accordance with GAAP, applied on a consistent basis. We continually evaluate the accounting policies and estimates used to prepare the Consolidated Financial Statements. In general, our estimates are based on historical experience, evaluation of current trends, information from third party professionals and various other assumptions that we believe are reasonable under the known facts and circumstances.

We consider the accounting policies discussed below to be critical to an understanding of our Consolidated Financial Statements as their application places the most significant demands on our judgment. Due to the inherent uncertainties involved with these types of judgments, actual results could differ significantly from estimates, which may have a material adverse impact on our results of operations and/or equity and CNA’s insurer financial strength and corporate debt ratings.

Insurance Reserves

Insurance reserves are established for both short and long-duration insurance contracts. Short-duration contracts are primarily related to property and casualty insurance policies where the reserving process is based on actuarial estimates of the amount of loss, including amounts for known and unknown claims. Long-duration contracts are primarily related to long term care policies and are estimated using actuarial estimates about morbidity and persistency as well as assumptions about expected investment returns and future premium rate increases. The reserve for unearned premiums on property and casualty contracts represents the portion of premiums written related to the unexpired terms of coverage. The reserving process is discussed in further detail in the Insurance Reserves section of this MD&A.

Reinsurance and Other Receivables

Exposure exists with respect to the collectibility of ceded property and casualty and life reinsurance to the extent that any reinsurer is unable to meet its obligations or disputes the liabilities CNA has ceded under reinsurance agreements. An allowance for doubtful accounts on reinsurance receivables is recorded on the basis of periodic evaluations of balances due from reinsurers, reinsurer solvency, industry experience and current economic conditions. Further information on CNA’s reinsurance receivables is included in Note 15 of the Notes to Consolidated Financial Statements included under Item 8.

Additionally, exposure exists with respect to the collectibility of amounts due from customers on other receivables. An allowance for doubtful accounts is recorded on the basis of periodic evaluations of balances due, currently as well as in the future, management’s experience and current economic conditions.

If actual experience differs from the estimates made by management in determining the allowances for doubtful accounts on reinsurance and other receivables, net receivables as reflected on our Consolidated Balance Sheets may not be collected. Therefore, our results of operations and/or equity could be materially adversely affected.

Valuation of Investments and Impairment of Securities

We classify fixed maturity securities and equity securities as either available-for-sale or trading which are both carried at fair value on the balance sheet. Fair value represents the price that would be received in a sale of an asset in an orderly transaction between market participants on the measurement date, the determination of which requires us to make a significant number of assumptions and judgments. Securities with the greatest level of subjectivity around valuation are those that rely on inputs that are significant to the estimated fair value and that are not observable in the market or cannot be derived principally from or corroborated by observable market data. These unobservable inputs are based on assumptions consistent with what we believe other market participants would use to price such securities. Further information on fair value measurements is included in Note 4 of the Notes to Consolidated Financial Statements included under Item 8.

CNA’s investment portfolio is subject to market declines below amortized cost that may be other-than-temporary and therefore result in the recognition of impairment losses in earnings. Factors considered in the determination of whether or not a decline is other-than-temporary include a current intention or need to sell the security or an indication that a credit loss exists. Significant judgment exists regarding the evaluation of the financial condition and

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expected near-term and long term prospects of the issuer, the relevant industry conditions and trends, and whether CNA expects to receive cash flows sufficient to recover the entire amortized cost basis of the security. Further information on CNA’s process for evaluating impairments is included in Note 1 of the Notes to Consolidated Financial Statements included under Item 8.

Long Term Care Policies

Future policy benefit reserves for CNA’s long term care policies are based on certain assumptions including morbidity, persistency, inclusive of mortality, discount rates and future premium rate increases. The adequacy of the reserves is contingent upon actual experience and CNA’s future expectations related to these key assumptions. If actual or CNA’s expected future experience differs from these assumptions, the reserves may not be adequate, requiring CNA to add to reserves.

A prolonged period during which interest rates remain at levels lower than those anticipated in CNA’s reserving discount rate assumption could result in shortfalls in investment income on assets supporting CNA’s obligations under long term care policies, which may also require an increase to CNA’s reserves. In addition, CNA may not receive regulatory approval for the premium rate increases it requests.

These changes to CNA’s reserves could materially adversely impact our results of operations and equity. The reserving process is discussed in further detail in the Insurance Reserves section of this MD&A.

Impairment of Long-Lived Assets

We review our long-lived assets for impairment when changes in circumstances indicate that the carrying amount of an asset may not be recoverable. We use a probability-weighted cash flow analysis to test property and equipment for impairment based on relevant market data. If an asset is determined to be impaired, a loss is recognized to reduce the carrying amount to the fair value of the asset. Management’s cash flow assumptions are an inherent part of our asset impairment evaluation and the use of different assumptions could produce results that differ from the reported amounts.

Income Taxes

Deferred income taxes are recognized for temporary differences between the financial statement and tax return bases of assets and liabilities. Any resulting future tax benefits are recognized to the extent that realization of such benefits is more likely than not, and a valuation allowance is established for any portion of a deferred tax asset that management believes may not be realized. The assessment of the need for a valuation allowance requires management to make estimates and assumptions about future earnings, reversal of existing temporary differences and available tax planning strategies. If actual experience differs from these estimates and assumptions, the recorded deferred tax asset may not be fully realized, resulting in an increase to income tax expense in our results of operations. In addition, the ability to record deferred tax assets in the future could be limited resulting in a higher effective tax rate in that future period.

We have not established deferred tax liabilities for certain of our foreign earnings as we intend to indefinitely reinvest those earnings to finance foreign activities. However, if these earnings become subject to U.S. federal tax, any required provision could have a material impact on our financial results.

ACCOUNTING STANDARDS UPDATE

For a discussion of accounting standards updates that have been adopted or will be adopted in the future, please read Note 1 of the Notes to Consolidated Financial Statements included under Item 8.

FORWARD-LOOKING STATEMENTS

Investors are cautioned that certain statements contained in this Report as well as some statements in other SEC filings and periodic press releases and some oral statements made by us and our subsidiaries and our and their officials during presentations may constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 (the “Act”). Forward-looking statements include, without limitation, any

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statement that does not directly relate to any historical or current fact and may project, indicate or imply future results, events, performance or achievements. Such statements may contain the words “expect,” “intend,” “plan,” “anticipate,” “estimate,” “believe,” “will be,” “will continue,” “will likely result,” and similar expressions. In addition, any statement concerning future financial performance (including future revenues, earnings or growth rates), ongoing business strategies or prospects, and possible actions taken by us or our subsidiaries are also forward-looking statements as defined by the Act. Forward-looking statements are based on current expectations and projections about future events and are inherently subject to a variety of risks and uncertainties, many of which are beyond our control, that could cause actual results to differ materially from those anticipated or projected.

Developments in any of the risks or uncertainties facing us or our subsidiaries, including those described under Item 1A, Risk Factors of this Report and in our other filings with the SEC, could cause our results to differ materially from results that have been or may be anticipated or projected. Given these risks and uncertainties, investors should not place undue reliance on forward-looking statements. Forward-looking statements speak only as of the date they are made and we expressly disclaim any obligation or undertaking to update these statements to reflect any change in our expectations or beliefs or any change in events, conditions or circumstances on which any forward-looking statement is based.

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