United States Steel Corporation J.P. Morgan Global High Yield & Leveraged Finance Conference

February 29 – March 2, 2016

© 2011 United States Steel Corporation

United States Steel Corporation

Forward-looking Statements

This presentation contains information that may constitute “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. We intend the forward-looking statements to be covered by the safe harbor provisions for forward-looking statements in these sections. Generally, we have identified such forward-looking statements by using the words “believe,” “expect,” “intend,” “estimate,” “anticipate,” “project,” “target,” “forecast,” “aim,” “will” and similar expressions or by using future dates in connection with any discussion of, among other things, operating performance, trends, events or developments that we expect or anticipate will occur in the future, statements relating to volume growth, share of sales and earnings per share growth, and statements expressing general views about future operating results. However, the absence of these words or similar expressions does not mean that a statement is not forward-looking. Forward-looking statements are not historical facts, but instead represent only the Company’s beliefs regarding future events, many of which, by their nature, are inherently uncertain and outside of the Company’s control. It is possible that the Company’s actual results and financial condition may differ, possibly materially, from the anticipated results and financial condition indicated in these forward-looking statements. Management believes that these forward-looking statements are reasonable as of the time made. However, caution should be taken not to place undue reliance on any such forward-looking statements because such statements speak only as of the date when made. Our Company undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law. In addition, forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from our Company's historical experience and our present expectations or projections. These risks and uncertainties include, but are not limited to the risks and uncertainties described in “Item 1A. Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2015, and those described from time to time in our future reports filed with the Securities and Exchange Commission.

United States Steel Corporation

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Investment Highlights Strength & opportunity Global leader with balanced business mix Proactively realigning operations to navigate challenging steel markets

Carnegie Way resulting in stronger financial position to weather the downturn Significant liquidity position Aggressively maximizing cash flow generation Significant operating leverage to take advantage of industry recovery

United States Steel Corporation

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The Carnegie Way

The Iconic Corporation Stockholder value-creation strategy Phase 1: Earn the right to grow Phase 2: Drive and sustain profitable growth

Critical Success Factors ▪ ▪ ▪ ▪

Relentless focus on economic profit Customer focus: quality and agility Competitive cost structure and footprint Investment in innovation and R&D

Operating our core business processes “The Carnegie Way” with standards and consistent execution Commercial

Supply Chain

Manufacturing

Procurement

Innovation

Functional Support

High Performing Organization: Flexible organization, industry-leading capabilities, aligned by Performance Scorecard and incentive metrics, with an accountable culture

Operating as a Principled Company: Safety, Core Values, Code of Conduct, and Gary Principles United States Steel Corporation

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Strategic Approach Carnegie Way transformation Phase 1: Earning the right to grow in search of: • Economic profits • Customer satisfaction and loyalty • Process improvements and focused investment

Phase 2: Driving profitable growth with: • Innovation and Technology • Differentiated customer solutions • Focused M&A

United States Steel Corporation

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Carnegie Way Benefits A strong performance in 2015 and a strong start in 2016 2016 - By Category

$815 million of Carnegie Way benefits realized in 2015 •Flat-Rolled

$647

•Tubular

$ 44

•U. S. Steel Europe

$115

•Other Businesses

$

9

11%

2%

50% 12% 37% Manufacturing

Supply Chain & Logistics

SG&A

Other

2016 - By Segment 7% 1%

55%

8%

$250 million of carryover impact in 2016 from projects that were implemented at various points throughout 2015

84%

Flat-rolled

Source: Company filings

U. S. Steel Europe

Tubular

United States Steel Corporation

Other Businesses

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Carnegie Way Transformation Improving Earnings Power 2015 vs. 2014 Flat-Rolled EBITDA $ Millions

$61/ton ̶ Carnegie Way Benefits $1,166

Price ($1,071) $155

$647

Volume ($2,303) $1,716

2014 EBITDA

Commercial

Costs & Other Income

Carnegie Way

2015 EBITDA

Note: For reconciliation of non-GAAP amounts see Appendix Source: Company filings

United States Steel Corporation

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Competitive Landscape Strong operating leverage when conditions improve Import Levels Declining but Still Remain at Elevated Levels

Market conditions

• Tubular segment • U. S. Steel Europe

700 Import Tons (000s)

• Flat-Rolled segment

800 600 500 400 300 200 100 -

Imports & trade

• Tariffs announced

HRC

CRC

Galv

• Volume trends Challenging Energy Market Fundamentals

2,500

• Energy

Rig Count

• Steelmaking raw materials

$100

2,000

$80

1,500

$60 1,000

$40

500

$20

North American Rig Count

Jan-16

Nov-15

Sep-15

Jul-15

May-15

Mar-15

Jan-15

Nov-14

Sep-14

Jul-14

May-14

Mar-14

Jan-14

Nov-13

Jul-13

Sep-13

May-13

Mar-13

$0 Jan-13

0

Sources: Import Data - US Department of Commerce Rig Counts - Baker Hughes WTI Crude - Federal Reserve, Bloomberg

USD/bbl

Commodity prices

$120

WTI Crude Oil

United States Steel Corporation

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Aligning Operations with Demand in Challenging Steel Markets Shifting production to gain operating efficiencies

Flat-Rolled

• Idled / closed 3 blast furnaces representing approximately 25% of our steelmaking capacity •

Commenced permanent shut-down of most of Fairfield Works flat-rolled facilities in August 2015



Idled Granite City Works in December 2015

• Deconsolidated high cost, high legacy liability Canadian operations in September 2014 •

Shifted automotive production to U.S. facilities from USSC for 2016

• Consolidating production at certain finishing facilities where appropriate

• Operating Minntac plant at reduced capacity to control pellet inventory levels • Idled Keetac plant

Tubular

• Eliminating / deferring spending across all locations and functions

• Postponed construction of electric-arc furnace at Fairfield Works • Consolidating production at certain locations where appropriate • Operating remaining facilities at significantly reduced levels • Eliminating / deferring spending across all locations and functions

Preserving optionality to bring capacity back online as market recovers Source: Company filings

United States Steel Corporation

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Financial Overview

United States Steel Corporation

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FY 2015 Financial Performance Summary $ in millions 2015 Adjusted EBITDA

2015 Cash flow from operations

$359

$202

$110

Efficient working capital management

$85 $136 $20

$93

$79

$51 ($13) Q1'15

Q2'15

Q3'15

Q4'15

FY'15

Gross debt

Q1'15

Q2'15

Q3'15

Q4'15

FY'15

$3,939

Cash $3,082

$3,498 $3,161

FY'12

FY'13

FY'14

FY'15

Note: For reconciliation of non-GAAP amounts see slide 27 Source: Company filings

Maintaining strong cash and liquidity a strategic priority

Liquidity R/C

$3,938

Positive adjusted EBITDA despite lowest utilization rate since 2009

$2,375

$2,358

$2,278

$570

$604

$1,788

$1,674

$1,728

$1,620

FY'12

FY'13

FY'14

FY'15

$1,354

$1.6 billion in undrawn revolving credit facility availability •

$755

Includes a $1.5 billion US credit facility maturing in 2020

United States Steel Corporation

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2016 Outlook

2016 Adjusted EBITDA Guidance

• •

At current market conditions, which include spot prices, import volumes and supply chain inventory levels, we would expect 2016 adjusted EBITDA to be near breakeven. As overall market conditions improve we would expect adjusted EBITDA to improve consistent with the pace and magnitude of any improvement in market conditions.



We expect improved results for Other Businesses, primarily from real estate.



We expect lower pension and other benefits costs.



At current market conditions, we expect approximately $500 million of cash benefits from working capital in 2016, primarily related to better inventory management.

Source: Company filings

United States Steel Corporation

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2016 Liquidity

Liquidity and cash flow (US$mm)

$2,375 $2,175

($350) $755

$500

($350)

$555

$1,620

2015 Liquidity

$1,620

2016E Capex

2016E Debt service, dividends, pension and OPEB

2016E Working capital

Revolving credit facilities availability

Net estimated effect on cash in 2016, excluding cash impacts from operating results, is negative $200 million

EBITDA greater than $200 million needed to be cash positive in 2016

2016E Liquidity *

Cash

* Assumes borrowing base supports full availability of credit facilities at 12/31/16 Source: Company filings and guidance

United States Steel Corporation

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Four Strategic Imperatives for 2016 to Weather the Trough

1. Working capital improvements

2. Additional Carnegie Way benefits

3. Financial flexibility & liquidity

4. Profitability priorities

United States Steel Corporation

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Investment Highlights Strength & opportunity

Global leader with balanced business mix Proactively realigning operations to navigate challenging steel markets

Carnegie Way resulting in stronger financial position to weather the downturn Significant liquidity position Aggressively maximizing cash flow generation Significant operating leverage to take advantage of industry recovery

United States Steel Corporation

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Appendix

United States Steel Corporation

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Global Leader

• 15th largest in global steel production in 2014 • 2nd largest North American flat-rolled producer • Largest domestic supplier of Oil Country Tubular Goods (OCTG) • One of the largest Central European flat-rolled producers World apparent steel use (finished steel)

191 155

185 130

202 142

120 84

140 130

147 145

150 143

154 145

660

735

711

707

704

544

563

156 123

139 133

588

641

146 112

168 152 124

378

418

447

551

317

422

463

465

393

462

492

507

523

535

2000

2006

2007

2008

2009

2010

2011

2012

2013

2014

Rest of World

China

NAFTA

2015E 2016E

EU-27*

* EU-27 through 2013. EU-28 from 2014 forward.

Source: worldsteel Association

United States Steel Corporation

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Flat-Rolled Strong market share in value-added products Annual raw steel production capability – 17.0 million net tons Balanced facility capabilities

Tilden Mining Company

Minnesota Ore Operations

Balanced contract and spot commercial position

Strong research and development activities

Hibbing Taconite Company

Worthington Specialty Processing

USS-POSCO Great Lakes Works DESCO Fairless Gary Works Plant PRO-TEC Mon Valley Works Feralloy Granite City Works Processing Corporation

Strong raw materials position Self-sufficient North American iron ore pellet production capability Significant portion of coal requirements under multi-year contracts

Double G

Fairfield Works

Self-sufficient under normal operating conditions in coke making capability Acero Prime Operations Source: Company filings

Joint Ventures

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Flat-Rolled Strong market share in value-added products Commercial Entities creating differentiated customer solutions in the automotive, consumer, industrial, service center and mining end markets Balanced business mix with strong market share in value-added products Continued development of advanced high strength steels to serve the needs of the automotive market

Source: Company filings

By Product - 2015 9%

3%

By Market - 2015 2%

Hot-rolled Sheet

Further Conversion

6%

4% 31%

24%

Cold-rolled Sheet Coated Sheet

Steel Service Centers

6%

40%

7%

Transportation Containers Construction

Tin Mill Products Appliances & Electrical Semi-finished & Plates

33%

Market Position

19% Exports

16%

Other

Significance

Automotive Solutions Services domestic and transplant automakers in North America

Metallurgically demanding applications with specialized customer service and technical support

Consumer Solutions Services the appliance, packaging, container and construction markets

Just-in-time inventory requirements favor domestic suppliers

Industrial Solutions Services the industrial equipment and pipe and tube manufacturing markets

Production costs globally competitive

Service Center Solutions Services the service center and distributor markets Mining Solutions Incorporates our Keetac and Minntac operations as well as the mining joint ventures

Strong diversification through leading positions in key end markets Mini-mills typically do not make certain value-added products

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Tubular Providing solutions to the energy industry for over a century Largest domestic supplier of Oil Country Tubular Goods (OCTG) • Substantial raw material self-sufficiency • 2.8 million net tons of raw tube capacity Domestic capabilities • Seamless products − 1.9” to 26” outside diameter and 0.140” to 2.312” wall thickness • Welded products − 2.375” to 16” outside diameter and 0.154” to 0.670” wall thickness Products & services aligned with market needs • OCTG and Standard & Line pipe • Proprietary premium and semi-premium connections • Rig Site Services • Coupling production and threading • Threading, inspection, and accessories

Source: Company filings

United States Steel Corporation

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U. S. Steel Europe Well positioned to serve growing markets By Region- 2015

Key industries: automotive, construction, service center, packaging and conversion

6%

COKE

U. S. Steel Košice Slovak Republic Capacity: 5.0 MMNT

50% 44%

Automotive/appliance galvanizing line V4

Historically favorable growth rates and infrastructure investment in primary geographic market – V4*

Rest of EU-28

By Product - 2015

Rest of World

By Market - 2015

11%

7%

16%

17%

31% 27%

Significant coke making and power generating capability

6%

10%

1% 20%

Semi-finished & Plates

Cold-rolled

Hot-rolled

Standard & Line Pipe

Coated

Tin Mill

5%

39%

10% Construction Appliances & Electrical Steel Service Centers Transportation

Containers All Other Further Conversion

* Visegrad Group – Czech Republic, Hungary, Poland and Slovakia

Source: Company filings

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Pension and OPEB Expense and funded status*

3.0

$2.7

OPEB - Underfunded Status

$ Billion

$2.2 2.0

$1.4 1.0

$0.6

$0.3

0.0

2011

2012

2013

2014

2015

Total - Underfunded Status

$602 6.0

$5.1

$ Billion

5.0

$4.9

4.0

$2.5

3.0

$1.6

2.0

$1.1

1.0 0.0

2011

2012

2013

2014

Major Assumptions: Discount rate: 5.00% for 2011, 4.50% for 2012, 3.75% for 2013, 4.50% for 2014, 3.75% for 2015, and 4.25% for 2016E Expected rate of return on assets: 8.00% in U.S. & 7.50% in Canada for 2011, 7.75% in U.S. & 7.25% in Canada for 2012 through 2014, 7.50% in U.S. for 2015 and 2016E Includes U. S. Steel Canada up until the deconsolidation on September 16, 2014 * The retiree medical plan was remeasured as of 1/31/2016 due to the ratification of the 2015 Labor Agreements. A discount United States Steel Corporation rate of 4.00% was used in the remeasurement. The underfunded status of OPEB at 1/31/2016 totaled $0.6 billion.

2015

22

Carnegie Way Transformation Improving Earnings Power 2015 vs. 2014 Consolidated Adjusted EBITDA $ Millions

$1,698 $202 ($613)

$815

2015 Adjusted EBITDA excl. Carnegie Way Benefits

Carnegie Way Benefits

($5,933)

$3,622

2014 Adjusted EBITDA

Revenue

Cost & Other Income excl. Carnegie Way Benefits

2015 Adjusted EBITDA

Note: For reconciliation of non-GAAP amounts see slide 27 Source: Company filings

United States Steel Corporation

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Carnegie Way Transformation Improving Earnings Power 2015 vs. 2014 Segment EBITDA Flat-Rolled $ Millions

Tubular $ Millions $61/ton ̶ Carnegie Way Benefits $327

Price ($1,071)

$1,166

$74/ton ̶ Carnegie Way Benefits

Price ($128)

$155 $44

($115)

$647 Volume ($1,685)

Volume ($2,303)

$1,327

$1,716

2014 EBITDA

Commercial

Costs & Other Income

Carnegie Way

2015 EBITDA

2014 EBITDA

U. S. Steel Europe $ Millions

$228

Commercial

Costs & Other Income

Carnegie Way

2015 EBITDA

$26/ton ̶ Carnegie Way Benefits

Price ($631)

$115

$162

$358

Volume $92 2014 EBITDA

Commercial

Note: For reconciliation of non-GAAP amounts see slide 28 Source: Company filings

Costs & Other Income

Carnegie Way

2015 EBITDA United States Steel Corporation

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Adjusted Results Reconciliation of adjusted EBITDA FY 2015

4Q 2015

3Q 2015

2Q 2015

1Q 2015

FY 2014

($1,202)

($453)

($170)

($392)

($187)

$413

547

129

136

138

144

627

(655)

(324)

(34)

(254)

(43)

1,040

Loss on shutdown of coke production facilities

153







153



Loss on shutdown of Fairfield Works Flat-Rolled Operations (a)

91



91







Losses associated with U. S. Steel Canada Inc.

392

121

16

255



416

Granite City Works temporary idling charges

99

99









Impairment of equity investment

18

18









Restructuring and other charges (b)

78

47

12

19





Postemployment benefit actuarial adjustment

26

26

Impairment of carbon alloy facilities











195

Write-off of pre-engineering costs at Keetac











37

Gain on sale of real estate assets











(55)

Litigation reserves











70

Loss on assets held for sale











14

Curtailment gain











(19)

Adjusted EBITDA

$202

($13)

$85

$20

$110

$1,698

($ millions) Reported (loss) earnings before interest and income taxes (EBIT) Depreciation expense EBITDA

(a) Includes the shutdown of the blast furnace and associated steelmaking operations, along with most of the flat-rolled finishing operations at Fairfield Works, and does not include the slab and rounds caster and #5 coating line. (b) Consists primarily of employee related costs, including costs for severance, supplemental unemployment United States Steel Corporation benefits and continuation of health care benefits.

25

Adjusted Results Reconciliation of segment EBITDA Segment EBITDA – Flat-Rolled

FY 2015

4Q 2015

3Q 2015

2Q 2015

1Q 2015

FY 2014

($237)

($88)

($18)

($64)

($67)

$709

Depreciation

$392

$90

99

99

104

457

Segment EBITDA

$155

$2

$81

$35

$37

$1,166

FY 2015

4Q 2015

3Q 2015

2Q 2015

1Q 2015

FY 2014

($179)

($64)

($50)

($66)

$1

$261

64

16

14

17

17

66

($115)

($48)

($36)

($49)

$18

$327

FY 2015

4Q 2015

3Q 2015

2Q 2015

1Q 2015

FY 2014

Segment EBIT

$81

$6

$18

$20

$37

$133

Depreciation

$81

20

21

20

20

95

Segment EBITDA

$162

$26

$39

$40

$57

$228

($ millions) Segment EBIT

Segment EBITDA – Tubular ($ millions) Segment EBIT Depreciation

Segment EBITDA

Segment EBITDA – U. S. Steel Europe ($ millions)

United States Steel Corporation

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