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  • 8/12/2019 ATP - IPAA 2012 Presentation Final 2[1]

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    Al Reese, Jr.

    Chief Financial Officer

    IPAA OGIS New YorkApril 17, 2012

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    1

    Certain statements included in this presentation contain "forward-looking statements" within the meaning of the safe

    harbor provisions of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as

    amended, and Section 21E of the Securities Exchange Act of 1934. ATP cautions that assumptions, expectations,

    projections, intentions, plans, beliefs or similar expressions used to identify forward-looking statements about future

    events may, and often do, vary from actual results and the differences can be material from those expressed or

    implied in such forward looking statements. Some of the key factors which could cause actual results to vary from

    those ATP expects include, without limitation, volatility in commodity prices for crude oil and natural gas prices,

    condition of the capital markets generally, as well as ability to access them, the timing of planned capital

    expenditures, availability of acquisitions, uncertainties in estimating reserves and forecasting production results,

    operational factors affecting the commencement or maintenance of producing wells, the and uncertainties regarding

    environmental regulations or litigation and other legal or regulatory developments affecting its business. ATP assumes

    no obligation and expressly disclaims any duty to update the information contained herein except as required by law.

    ATP generally discloses, in filings made with the SEC, only proved reserves that can demonstrate by actual production

    or conclusive formation tests to be economically and legally producible under existing economic and operating

    conditions. ATP and its independent third party reservoir engineers use the term "probable" to describe volumes of

    reserves potentially recoverable through additional drilling or recovery techniques that the SEC's guidelines prohibit a

    company from including in proved reserves. These estimates are by their nature more speculative than estimates of

    proved reserves. Any estimates of probable reserves in this presentation are based on the December 31, 2011 reports

    of our independent third party engineers. PV-10 is a non-GAAP financial measure because it excludes income tax

    effects. Management believes that the presentation of PV-10 provides useful information to investors because it is

    widely used by professional analysts and sophisticated investors to evaluate oil and gas companies. PV-10 is not a

    measure of financial or operating performance under GAAP. The most directly comparable GAAP financial measure is

    the standardized measure of discounted future net cash flows. PV-10 should not be considered a substitute for the

    standardized measure of discounted future net cash flows as defined under GAAP, which is calculated at year end

    under accounting rules by applying pricing assumptions of the SEC to its proved reserves. More information about the

    risks and uncertainties relating to ATP's forward-looking statements is found in the companysSEC filings or website

    www.atpog.com.

    Corporate Headquarters

    4600 Post Oak Place, Suite 100Houston, TX

    77027- 9726Telephone: (713) 622 3311IR Fax: (713) 622 6829

    Forward Looking Statements

    Investor Relations

    Al Reese, Jr.Chief Financial Officer

    Tom Kucera, CFADirector of Financial Analysis

    Henry Coulter, CPAFinancial Analyst

    Isabel PlumeChief Communications Officer

    Sheila ThorntonCommunications & CorporateAffairs Specialist

    [email protected]

    www.atpog.com

    NASDAQ: ATPG

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    Four Core Areas of Operation

    Offshore acquisition,development andproduction of oil andnatural gas

    Focused primarily onoil-weighted reservoirs

    Future productiongrowth from existingproved undevelopedreserves

    Operate infrastructureassets which arecomplementary to lowrisk hub development

    Recent expansion intodeepwater Israelprovides upsidepotential

    (1) Refer to Appendix for additional information.

    Note: All reserve figures based on third-party reserve reports as of 12/31/2011.

    2

    MMBoe % of Reserves

    North Sea 64.7 31%

    GOM Shelf 8.8 4%

    GOM Deepwater 137.8 65%

    Mediterranean Sea - -

    Total Proved & Probable 211.3 100%PV10 $7.68 billion

    (1)

    MMBoe % of Reserves

    North Sea 64.7 31%

    GOM Shelf 8.8 4%

    GOM Deepwater 137.8 65%

    Mediterranean Sea - -

    Total Proved & Probable 211.3 100%PV10 $7.68 billion

    (1)

    Core areas of operations

    MMBoe% of

    Reserves

    North Sea: 63.9 33.0%

    GOM Shelf: 5.3 3.0%

    GOM Deepwater: 125.2 64.0%

    Mediterranean Sea:

    Total Proved & Probable 194.4 100.0%

    PV-10 $7.3 billion(1)

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    Probable

    reserves =

    75.5

    Mmboe

    Proved

    reserves =

    118.9

    Mmboe

    Low Risk Development Portfolio

    3

    Large inventory of proved and probable reserves to develop

    - Known hydrocarbons with no exploration risk- 98% success rate converting undeveloped properties to production

    - Proved reserves consist of 66% oil / 34% natural gas

    Development projects drive long-term production growth

    Oil66%

    U.K. Gas15%

    U.S. Gas19%

    Proved and Probable = 194.4 MMBoeProved and Probable SEC PV-10 = $7.3 billion

    Proved reserves = 118.9 MMBoeProved reserves SEC PV-10 = $4.2 billion

    2011YE Proved reservecomposition

    2011YE Proved and Probable reservecomposition

    Pre-tax PV-10 of 2011YE proved reserves increased 50%+ over 2010

    SEC PV-10= $4.2 billion

    SEC PV-10= $3.1 billion

    Note: All reserve figures based on third-party reserve reports as of 12/31/2011. See appendix for price deck detail.

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    16.1

    21.0

    24.6

    2009

    average rate

    2010

    average rate

    2011

    average rate

    2012

    Production in Avg. MBoe/d

    FourthTelemark well(MC 942 A-3)

    Workovers atMC 941 A-1 &A-2

    Clipper onproduction

    2013 Growth Drivers

    Full year of Telemarkproduction with fourwells online

    Full year of Clipperproduction

    Two additional wellsat Gomez (#9 & 10)

    Greater realizationsper barrel due todecrease in NPI / ORRIpayout %

    Annual Production Growth Expectedto Continue

    4

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    ATP is at an Inflection Point

    5

    Experiencing significant improvement in production ratesand oil production mix

    Substantial decline in infrastructure capital expendituresgoing forward

    Growing production and cash flow further enhanced bythe paydown of current NPIs and ORRIs, which results inincreased cash flow to ATP

    Initial wells at Clipper have some of the highestdeliverability rates of any current and historical ATP oiland gas wells

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    Liquidity is Sound

    6

    Estimated cash position of $200+ million at 3/31/2012

    No near-term debt maturities or maintenance financialcovenants

    ORRI and NPI repayments tied directly to productionrevenues

    Major infrastructure projects near completion

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    Production

    Reserves

    2012 Multiple Catalysts for ATP

    MC 941 A-1 & A-2workover

    4-7 MBoe/d netincremental productionestimate

    Work currentlyunderway

    Results of initial

    exploration well in Israel Spud date in late April

    2012

    Potential to add 0.9-1.2Tcf of reserves

    First production atClipper

    Late 3Q2012 /early 4Q2012estimated

    2 wells tested at 16MBoe/d net combined

    MC 942 A-3 (completed)

    4th well at Telemark

    Online February 25,2012

    >7 MBoe/d

    2Q 3Q 4Q1Q

    7

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    Estimated cash balance of $200+ million at 3/31/2012

    First quarter production estimated at 1.8 1.9 MMBoe (65%+ oil and condensate)

    Progress at Telemark

    MC 942 A-3 well is on production

    MC 941 A-1 & A-2 workovers in progress

    Clipper on track for production late 3Q2012 / early 4Q2012

    Preparation for first exploration well in Israel

    Spud date of first well expected in late April 2012

    On March 15, 2012 ATP was awarded the Safety-in-Seas Award from the National Ocean IndustriesAssociation. ATP was chosen by a blue-ribbon panel of judges from among multiple nominees.The national award recognized ATP for its exemplary contribution to the safety of offshore energyworkers, as well as for the design conceived three years prior to the Macondo incident andsafety-redundancy of theATP Titan, a technologically advanced deepwater drilling andproduction platform in the Gulf of Mexico.

    First Quarter Update

    8

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    99% of all proved reserves on a PV-10

    basis are operated by ATP- Ability to control costs and timing

    - Ability to manage operating risksthrough sell down of interests

    - Known track record of developingassets

    Deepwater operating expertise

    - ATP ranks 4th overall in deepwaterGulf of Mexico wellbores

    - Expertise provides ATP new globalopportunities

    Experienced and incentivizedmanagement and technical teams

    - Deep technical team with averageexperience of over 25 years

    - Key members of senior managementteam have worked together since1984

    - Senior management and directorsown ~15% of ATP

    - Every employee has an ownershipstake in ATP

    2

    2

    3

    3

    4

    4

    5

    6

    7

    7

    8

    9

    14

    16

    17

    18

    18

    28

    40

    53

    LLOG

    Petrobras

    Newfield

    Nexen

    Marathon

    Noble

    Murphy

    Chevron

    ERT

    Mariner

    Hess

    Marubeni

    BHP

    Exxon

    Walter

    Eni

    ATP

    Anadarko

    BP

    Shell

    Deepwater Gulf of Mexico Wellbores (including Majors)

    Note: Does not include eight companies, each of which has one wellbore.

    Source: BOEM website 2010

    Proven Offshore Operator with ExperiencedManagement

    Majors

    Independents

    ATP (Independent)

    9

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    ATP owns substantial infrastructure assets in operation today and additional assets are under

    construction with deployment scheduled in 2014

    Long-lived re-useable assets (20 - 50 years) are key to ATPs hub strategy

    ATP will continue to operate and control its assets

    Complete & Producing Under Construction

    Reusable Floating Deepwater Infrastructure

    Initial Installation Gomez Hub Telemark Hub Cheviot Hub

    Capacity 20 MBbls/d / 100 MMcf/d 25 MBbls/d / 50 MMcf/d(1)

    25 MBbls/d / 50 MMcf/d

    In Service / Utility 2006 / >20 yrs 2009 / >40 yrs 2014 / >50 yrs

    Water Depth Range 300' - 3,500' 1,500' - 9,500' 500' - 9,500'

    % Ownership 51%(2)(3)

    100%(3)

    100%

    (1) Expandable to 100 MMcf/d.(2) Created an SPV by selling 49% ownership in theATP Innovatorto GE Financial Services for $150 million.(3) Ownership held in ATP-owned SPV.

    Fleet of Re-usable Floating DeepwaterInfrastructure

    10

    ATP Innovator - Gomez Hub ATP Titan

    Telemark Hub Octabuoy - Cheviot Hub

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    Canyon Express

    Telemark

    Gomez

    Clipper

    Entrada

    Ladybug

    Hub strategy improves

    economics and growthopportunities. Future Development

    Producing

    Producing + Future Development

    11

    Deepwater Gulf of Mexico Operations

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    14.819.5

    7.9

    8.9

    22.2

    2003 (Inception) 2011

    Production (MMboe)

    Probable reserves (MMBoe)

    Proved reserves (MMBoe)

    50.6

    22.7

    Gomez Hub Telemark Hub Clipper Project

    22.5

    38.8

    8.4

    16.7

    5.3

    2006 (Inception) 2011

    Production (MMboe)

    Probable reserves (MMBoe)

    Proved reserves (MMBoe)

    60.8

    30.9

    7.18.2

    4.3

    5.4

    2010 (Inception) 2011

    Probable reserves (MMBoe)

    Proved reserves (MMBoe)

    13.6

    11.4

    History of outperforming initial third-party reserve estimates

    12

    The value of deepwater is that reserves tend to increase alongside production

    Deepwater Math

    Note: All reserve figures based on third-party reserve reports as of 12/31/2011.

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    13

    Summary:

    Acquired MC 941, MC 942 & AT 63 in 2006

    Acquired AT 19 & AT 62 in 2008

    ATP operates with a 100% WI

    Initial production started March 2010 at theTelemark Hub

    Water depth ~4,000 ft

    MC 942 A-3 well on production Feb 25,2012

    MC 941 A-2 well workover in progress

    MC 941 A-1 producing; sleeve shiftscheduled after completion of A-2 workover

    AT 63 producing

    Telemark Hub Property Overview

    Note: All reserve figures based on third-party reserve reports as of 12/31/2011.

    2011YE:38.8 MMBoe Proved Reserves (79% Oil)

    55.5 MMBoe Proved & Probable Reserves (85% Oil)

    Shell/ StatoilHydro/ Anadarko Vito discovery, July 29,2009: Well encountered more than 250 net feet of oil

    pay in subsalt Miocene sands

    MC 940MC 941

    100% WI

    MC 942

    100% WIMC 943

    MC 987MC 986MC 985MC 984

    Vito

    AT 16 At 17 AT 18AT 19

    100% WI

    AT 63

    100% WI

    AT 62

    100% WIAT 61AT 60

    ATPTitan

    ATP blocks

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    14

    Summary

    Acquired by ATP in 2008, operated with100% WI

    - Discovered in 2005 by Pioneer NaturalResources

    Water depth ~3,450 ft

    GC 300#2 well completed in July 2011(Flow-tested at 12.3 MBoe/d)

    GC 300#4 well completed in December 2011(Flow-tested at 9.8 MBoe/d)

    Combined test: 22.1 MBoe/d (16.4 MBoe/dnet; 62% oil)

    First production expected from both wellslate 3Q2012 / early 4Q2012

    Clipper (Green Canyon Block 300)

    Status update

    Note: All reserve figures based on third-party reserve reports as of 12/31/2011.

    2011YE:

    8.2 MMBoe Proved Reserves (72% Oil)

    13.6 MMBoe Proved & Probable Reserves (66% Oil)

    Pipeline to 3rd party platform, currently in progress,scheduled for 3Q2012 (lay barge contracted for July)

    Onsite work at Murphy Frontrunner, the host platform,commenced

    Clipper tested at 67 percent ofATPs 2011 average daily production

    MBoe/d

    16.4

    24.6

    Clipper combined test

    (production expected 3Q2012 /

    4Q2012)

    ATP

    2011

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    EntradaGarden Banks Block 782

    15

    Acquired in 2010

    Water depth ~4,550 ft

    Previous drilling found logged hydrocarbonsin 7 wellbores

    ATP operates with 100% WI

    Development currently scheduled for 2013 2014

    Application for Development Plan in processin accordance with recent regulations

    Expect probable reserves to convert toproved upon drilling of first well

    Note: All reserve figures based on third-party reserve reports as of 12/31/2011.

    2011YE:

    1.9 MMBoe Proved Reserves (82% Oil)

    12.2 MMBoe Proved & Probable Reserves (49% Oil)

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    North Sea Operations

    Cheviot

    Skipper

    Helvellyn

    Wenlock

    Blythe

    L-6d

    Tors

    Future Development

    Producing

    Producing + Future Development

    16

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    17

    Cheviot Hub

    Note: All reserve figures based on third-party reserve reports as of 12/31/2011.

    COSCO Shipyard, Nantong, China, March 2012

    2011YE:

    38.9 MMBoe Proved Reserves (66% Oil)

    55.9 MMBoe Proved & Probable Reserves (65% Oil)

    Cheviot First oil expected in 2014

    Anticipated peak production of25 MBbls/d and 50 MMcf/d

    ATP operates with a 100% WI

    In active discussion with potentialworking interest partners

    Extensive technical analysis, includingreservoir simulation, performed by ATP

    Filed field development plan4/15/2011

    Octabuoy (Under Construction)- Cheviot Hub

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    Daniel EastDaniel EastShimshonShimshon

    Daniel WestDaniel West

    DiscoveriesDiscoveries

    ATP AcreageATP Acreage

    LeviathanLeviathanTamarTamar

    DalitDalit

    Cyprus

    Block 12

    Cyprus

    Block 12

    18

    ATP operates with a 40% WI

    Anticipate initial drilling to begin 2Q2012

    - ATPs portion: $24$29 million

    Water depth 3,622 ft., target depth 14,764 ft.

    Lockwood & Assoc. estimated Shimshonspotential gas reserves:

    - Gross: 2.5 3.4 Tcf

    - Net to ATP: 0.9 1.2 Tcf

    Mediterranean Licenses

    Shimshon Property Overview

    Israel Market Pricing

    Current local gas price in excess of $6.50/Mcf

    Current LNG prices of $89/MMBtu to Europe and $1416 to Asia

    A O i i Off h l

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    ATPs Opportunity in Offshore IsraelProvides Additional Upside

    Three Deepwater Licenses:

    - Operator of all three licenses- Ownership ranges from approximately 30% to 50%

    - Minimal upfront investment

    Key Points:

    - Small cost for extremely large potential

    - Opportunity to enter world class area during the early stages of exploration and development

    - Enhances future ability to acquire and develop proved undeveloped assets in this region

    0

    4

    8

    12

    16

    Leviathan

    Israel

    Tamar 1

    Israel

    Dhirubhai 1

    Indonesia

    Poseidon 1

    Australia

    Dhirubhai 3

    Indonesia

    Arous El Bahar

    Libya

    Pluto

    Australia

    Clio 1

    Australia

    Windjammer 2

    Mozambique

    Chandon 1

    Australia

    Large Potential in Israel

    RecoverableNatural

    Gas(Tcf)

    Source: IHS-EDIN database.Filtered for non-associated gas fields, water depth greater than 1,000 ft and discovery date from 2001-2010.

    19

    For low costs ATP will evaluate ~1 TCF net

    Top 10 Deepwater Gas Discoveries Worldwide (2001 2010)

    E M di R i l

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    East Mediterranean Rationale

    6 successful exploration wells out of 6 attempts since drilling began in 2008 fordeepwater subsalt targets

    Elephant-sized natural gas discoveries totaling 35 Tcf (5.8 bn Boe) and $285 bn of revenue potential

    Tamar & Leviathan fields, two of the largest deep water natural gas discoveries of the last decade

    Large natural gas discovery in Cyprus Block 12

    Significant remaining potential of gas and oil in the area

    Noble Energy has resumed drilling Leviathans deeper oil prospects estimated to hold ~2.4 bn Bbls

    20

    SIGNIFICANT SUBSALT MIOCENE DISCOVERIES

    Noble Energy

    enters Israel

    Yam Tethysdiscoveries

    (1.2 TCF)

    Tamardiscovery

    (9.1 TCF)

    Leviathandiscovery

    (17 TCF)

    Cyprusdiscovery

    (7 TCF)

    Tanindiscovery

    (1.2 TCF)

    L T C it l & L

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    Long-Term Capital & Leverage

    First lien and second lien debts have no maintenance financial covenants and mature in2015

    ATP began granting NPIs & ORRIs to a combination of vendors and financial firms in 2009

    - Attractive from a liquidity standpoint because payments are proportional to ATP

    production and pricing from a given property or properties

    - Higher prices, higher production = Faster payoff

    - Lower prices, lower production = Smaller payments

    ATP estimating 3040% of 2012 revenue will be directed to servicing NPIs & ORRIscurrently outstanding; percentage expected to decrease in latter part of 2012 andreduce to 1520% in 2013

    - Another source of increasing available cash flow to ATP above and beyond expected

    increase in production volumes21

    Note: See appendix for outstanding amounts.

    2012 C it l O tl k

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    2012 Capital Outlook

    2012 Capital Plan

    - ATP's 2012 capex plans call for $400500 million in total capital expenditures

    - $5070 million is expected to be contributed by vendors through existing NPI ordeferral programs

    Development:

    - GOM Telemark MC 942 A-3 on production- Currently conducting workover on MC 941 A-2 with sleeve shift then scheduled

    on MC 941 A-1

    - GOM Gomez #9 and #10 wells. Start in late 2012. Primarily a 2013 development

    - GOM Clipper pipeline

    - North Sea Cheviot, sub-sea trees ordered

    Infrastructure:

    - North Sea Octabuoy topsides, schedule being finalized, favorable vendor financing

    Exploration:

    - Israel Shimshon well, targets ~1TCF @ $0.03/MCF22

    K I t t Hi hli ht

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    Key Investment Highlights

    ATP is at an inflection point

    - Experiencing significant improvement in production rates and oil production mix

    - Substantial decline in infrastructure capital expenditures going forward

    - Growing production and cash flow further enhanced by the paydown of current NPIs

    and ORRIs, which results in increased cash flow to ATP

    Liquidity is sound

    - Estimated cash position of $200+ million at 3/31/2012

    - No near-term debt maturities or maintenance financial covenants

    - ORRI and NPI repayments tied directly to production revenues

    - Major infrastructure projects near completion

    23

    K I t t Highlight ( td)

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    Key Investment Highlights (contd)

    Deepwater operating expertise

    - ATP ranks 4th overall in deepwater Gulf of Mexico wellbores; this expertise hasprovided ATP new global opportunities

    Fleet of Re-usable Floating Deepwater Infrastructure

    - ATP owns substantial infrastructure assets in operation today; additional assets underconstruction with deployment scheduled in 2014

    - ATP will continue to operate and control its assets

    Substantial asset value

    - Proved and probable reserves of 194.4 MMBoe (66% oil) with SEC PV-10 of $7.3 billionat 12/31/11

    - Infrastructure investment of over $1.0 billion

    Strong alignment of shareholders, management and employees

    - Every employee is an owner of ATP

    - Management and Directors own ~15% of ATP

    - Key management members have worked together since 1984

    Note: All reserve figures based on third-party reserve reports as of 12/31/2011. Refer to appendix for additional information. 24

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    25

    ATP Oil & Gas Corporation (NASDAQ: ATPG)

    ATP Oil & Gas Corporation4600 Post Oak Place , Suite 100Houston, TX 77027-9726713-622-3311

    ATP Oil & Gas (UK) LimitedVictoria House, London Square, Cross LanesGuildford, Surrey GU1 1UJ

    United Kingdom44 (0) 1483 307200

    ATP Oil & Gas (Netherlands) B.V.Water-Staete GebouwDokweg 31 (B)1976 CA IJmuidenThe Netherlands

    31 (0) 255 523377

    ATP East Med B.V.15 Aba Even StreetHerzliya Pituach 46725Israel

    www.atpog.com

    ATP Innovator

    ATP Titan Octabuoy

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    26

    Appendix

    Gomez Hub

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    Gomez Hub

    Acquired in 2003

    - First production in 2006

    - Still producing from initial zones

    Water depth ~3,000 ft

    ATP operates

    Six wells on production

    DOCD for MC 711#9 and #10 approved January 20,2012. Wells planned in late 2012-early 2013

    Exploration upside

    27

    Summary ATP Innovator - Gomez Hub

    MC 666MC 667

    100% WI

    MC 668

    100% WI

    MC 710 MC 711100% WI

    MC 712

    MC 754

    75% WIMC 756

    MC 798 MC 799 MC 800

    MC 755

    100%

    100% WI

    ATP blocks

    ATPInnovator

    MC 666MC 667

    100% WI

    MC 668

    100% WI

    MC 710 MC 711100% WI

    MC 712

    MC 754

    75% WIMC 756

    MC 798 MC 799 MC 800

    MC 755

    100%

    100% WI

    MC 666MC 667

    100% WI

    MC 668

    100% WI

    MC 710 MC 711100% WI

    MC 712

    MC 754

    75% WIMC 756

    MC 798 MC 799 MC 800

    MC 755

    100%

    100% WI

    ATP blocks

    ATPInnovator

    Note: All reserve figures based on third-party reserve reports as of 12/31/2011.

    2011YE:19.5 MMBoe Proved Reserves (64% Oil)

    28.4 MMBoe Proved & Probable Reserves (69% Oil)

    Hub Concept Improves Economics & Growth

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    Hub Concept Improves Economics & Growth

    Low-risk development strategy

    - Hubs encourage development of neighboring projects

    - Proved undeveloped reserves with logged hydrocarbons and extensive seismic

    - Staged hub development and operating control provide timing and cost flexibility

    Cost effective development plan aided by infrastructure

    - Infrastructure assets complementary to strategy

    - Application of award-winning innovations and technologies, include 16 patentsawarded and 5 pending and 5 additional filings awaiting first action for a total of 26inventions and systems

    - Long-lived re-locatable assets (20 - 50 years)

    28

    ATPs Hub Concept is a low-risk, cost-effective development strategywith significant growth opportunities

    Financial Strategy & Risk Management

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    Financial Strategy & Risk Management

    Capex program continues to focus on development of proven reserves rather thanexploration

    Monetize assets and access the equity capital markets when appropriate

    Establish SPVs for major infrastructure assets with equity partners or non-recourse debt

    Manage leverage and liquidity

    Operate properties to control development plan and timing of capital expenditures

    Maximize value creation of hubs and other development projects, then reduce exposure

    Maintain appropriate capital structure

    Utilize multiple capital raising alternatives

    Pursue an active oil and gas hedging program

    Maintain a comprehensive insurance program

    29

    Financial Strategy

    Managing Risk

    Telemark Wells

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    Telemark Wells

    30

    Drilling order Name Description

    1 AT 63 #SS04 Atwater Valley 63

    2 MC 941 A-1 Mississippi Canyon 941 #3

    3 MC 941 A-2 Mississippi Canyon 941 #4

    4 MC 942 A-3 Mississippi Canyon 942 #2

    Price Deck

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    Price Deck

    (1) Based on USD/GBP conversion rate at $1.55/GBP on 12/31/11.

    NYMEX UK Gas

    (1)

    Crude Natural gas Natural gas

    ($/Bbl) ($/MMBtu) ($/MMBtu)

    YE 2011 SEC pricing $96.19 $4.12 $9.02

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    Derivatives Summary

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    Derivatives Summary

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    2Q 3Q 4Q FY 1Q 2Q 3Q 4Q FYGulf of Mexico

    Natural Gas Calls

    Volumes (MMMBtu) 910 920 920 2,750 - - - - -

    Price ($/MMBtu) 5.30$ 5.30$ 5.50$ 5.37$ - - - - -

    Crude Oil Swaps

    Volumes (MBbls) 751 759 759 2,269 315 228 230 230 1,003

    Price ($/Bbl) 97.36$ 97.36$ 97.36$ 97.36$ 103.60$ 108.88$ 108.88$ 108.88$ 107.22$

    Prepaid Crude Oil S waps(1)

    Volumes (MBbls) 268 202 104 575 - - - - -

    Price ($/Bbl) -$ -$ -$ - - - - - -

    Crude Oil Basis Swaps

    Volumes (MBbls) 273 276 205 754 233 182 184 184 783

    Basis Price ($/Bbl, LLS - WTI) 13.53$ 10.90$ 10.39$ 11.71$ 5.06$ 4.18$ 4.18$ 4.18$ 4.44$

    Crude Oil Swaptions (Calls Sold)(2)

    Volumes (MBbls) - - - - 90 91 92 92 365

    Strike Price ($/Bbl) - - - - 96.50$ 96.50$ 96.50$ 96.50$ 96.50$

    North Sea

    Natural Gas Swaps

    Volumes (MMMBtu) 455 460 460 1,375 180 - - - 180

    Price ($/MMBtu)(3)

    8.26$ 8.26$ 10.13$ 8.88$ 11.28$ - - - 11.28$

    (2) Call swaptions sold to a third party that allows the third party to exercise and enter into a swap with ATP at the strike price.(3) Assumes currency trans lation rate of 1.60 USD per GBP which approximates the rate as of April 13, 2012

    Additional hedges, derivatives and fixed price contracts, if any, will be announced during the year.

    (1) ATP received cash proceeds at closing averaging approximately $105.03 per barrel. During the future

    contract settlement months, ATP will pay cash based on the prevailing market prices in effect at that time,

    which may be more or less than ATP were paid.

    Derivatives Schedule

    (Unaudited)

    2012 2013

    The above are ATP's financial and physical commodity contracts outstanding as of April 13, 2012

    Long-Term Patient Corporate Leverage Structure

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    Long-Term Patient Corporate Leverage Structure

    $1.5 billion aggregate principal amount with an 11.875% interest rate and May 2015maturity

    $365 million senior secured term loan

    March 2011 increased amount from $150 million to $210 million, decreased rate from 11%to 9% and extended maturity from October 2014 to January 2015

    March 2012 increased amount from $210 to $365 million and decreased rate from a 9.00%

    to 8.75%

    33

    High yield bonds (April 2010)

    Managing Risk

    Debt & Other Obligations

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    Debt & Other Obligations

    (1) Pro forma values, including additional financings after 12/31/2011.

    12/31/2011

    Net profits interests (Telemark Hub, Gomez Hub and Clipper) $336.7 (1)

    Dollar-denominated overriding royalty interests (Gomez Hub) 227.3 (1)

    Other long-term obligations 186.5

    Total long-term obligations $750.5

    First lien term loans 359.7 (1)

    Second lien bonds 1,495.3

    ATP Titan, LLC term loan 310.0

    Total $2,935.5