2013 Full Year Results Presentation Thursday, 27 March 2014 Notice The content of this presentation has not been approved by an authorised person within the meaning of the Financial Services and Markets Act 2000 (“FSMA”). Reliance on the information contained in this presentation for the purposes of engaging in any investment activity may expose the investor to a significant risk of losing all of the property or assets invested. Any person who is in any doubt about the investment to which this presentation relates should consult a person duly authorised for the purposes of FSMA who specialises in the acquisition of shares and other securities. The information in this presentation is subject to updating, revision and amendment. The information in this presentation, which includes certain information drawn from public sources does not purport to be comprehensive and has not been independently verified. This presentation does not constitute or form part of any offer or invitation to sell, or any solicitation of any offer to purchase or subscribe for or otherwise acquire, any securities in Afren plc (the "Company") in any jurisdiction or any other body corporation or an invitation or an inducement to engage in investment activity under section 21 of the Financial Services and Markets Act 2000, nor shall it or any part of it form the basis of or be relied on in connection with any contract therefore. This presentation does not constitute an invitation to effect any transaction with the Company or to make use of any services provided by the Company. No reliance may be placed for any purpose whatsoever on the information contained in this presentation or any assumptions made as to its completeness. 2 | 2013 Full Year Results Presentation No representation or warranty, express or implied, is given by the Company, any of its subsidiaries or any of its advisers, officers, employees or agents, as to the accuracy, reliability or completeness of the information or opinions contained in this presentation or in any revision of the presentation or of any other written or oral information made or to be made available to any interested party or its advisers and, save in the case of fraud, no responsibility or liability is accepted (and all such liability is hereby excluded for any such information or opinions). 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Any financial projection and other statements of anticipated future performance that are included in this presentation or otherwise furnished are for illustrative purposes only and are based on assumption by the Company's management that are subject to significant risks and uncertainties and may prove to be incomplete or inaccurate. Actual results achieved may vary from the projections and the variations may be material. Variations in the assumptions underlying the projections may also significantly affect projected results. This presentation has not been examined, reviewed or compiled by the Company's independent certified accountants. No representation or warranty of any kind is made with respect to the accuracy or completeness of the financial projections or other forward-looking statements, any assumptions underling them, the future operations or the amount of any future income or loss. By attending / reading the presentation you agree to be bound by these provisions. Agenda Strategy 4 Financial results 7 Portfolio management 14 Production growth 17 Reserves growth 22 Conclusions 29 Appendix 31 3 | 2013 Full Year Results Presentation Strategy Osman Shahenshah Shareholder value 4 | 2013 Full Year Results Presentation A year of unprecedented results 2013 – Record financial results • Net production at top end of guidance 47,112 boepd • Revenue of US$1.6bn and cash flow from operations of US$1.2bn 2014 – Targeting low-risk reserves growth • Ogo: 3rd largest global discovery in 2013 – forward programme underway • Building on strong track record of delivery • Significant upside to 2P around existing assets 2014 – Allocating capital to highest cash return projects Next 5 years – double-digit CAGR production growth • Okoro continues to outperform • From within existing portfolio of assets • Ebok completely de-risked 5 | 2013 Full Year Results Presentation Strategy – Afren’s value drivers TODAY Market Cap US$2.6bn Asset value upside Early access in ‘hot’ industry postcodes – Nigeria, Kurdistan, East Africa Growing reserves Significant resource potential adjacent to existing production 2006 AIM listing 2005 AIM listing Market Cap US$73m Initial Okoro Development 6 | 2013 Full Year Results Presentation High margin cashflow generation Foundation of strong producing assets Financial results Darra Comyn Shareholder value 7 | 2013 Full Year Results Presentation 2013 financial results summary Record financial performance Strong cash flow generation from quality producing assets US$m 2013 20122 Change Revenue 1,644 1,571 +5% Gross profit 643 791 -19% Profit for the year 475 189 151% Normalised profit before tax1 483 637 -24% Basic earnings per share (cents/share) 43.8 18.6 +135% Capital investment3 716 521 +37% 1,216 974 +25% 739 561 +32% Net cash from operating activities Net debt (1) Excludes the effect of one-off and non-cash items, including impairments, share of joint venture losses, share-based payments and certain financing and foreign exchange costs (2) Restated as a result of the adoption of IFRS 10 and IFRS 11 (3) Excluding capitalised interest, partner settlements and office capex 8 | 2013 Full Year Results Presentation Profit for the year 2012 to 2013 profit comparison 700 600 72 500 US$m 400 300 33 106 537 7 513 37 200 38 119 100 0 187 End 2012 Revenue - volume Revenue - price 9 | 2013 Full Year Results Presentation Operating costs Royalties DD&A Other costs/provisions 51 40 Finance costs/hedging Disposed assets - - Tax - Exploration write off End 2013 Tax update • US$419m in taxes and royalties of which US$400m was paid in Nigeria in 2013 (2012 - US$233m) • Income tax credit of US$157m reflects reversal of prior years’ deferred and current tax provisions • Ebok tax exemption: June 2011 to May 2016 • Post June 2016 reset to first oil • Accelerated capex on Ebok in 2014 and 2015 • Continuing to pay corporate taxes, indirect taxes, royalties and other levies in Nigeria 10 | 2013 Full Year Results Presentation Sources and uses of funds End 2013 cash balance of US$390m 1,800 1,600 1,400 735 US$m 1,200 1,005 1,000 800 59 446 600 291 265 400 599 390 200 0 End 2012 Operating cash flow before working capital 11 | 2013 Full Year Results Presentation Investment activities Acquisitions Working capital and other movements Tax Capital repayment and debt servicing End 2013 Financial flexibility Extended debt maturity profile and lower cost of debt End 2013 US$m End 2012 US$m Rate Repayment due 2016 senior secured notes 253 500 11.5% 2016 2019 senior secured notes 250 300 10.25% 2019 2020 senior secured notes 360 - 6.625% 2020 Bank facilities 290 287 LIBOR +4.25%/7% From 2015 - 103 LIBOR +4.5% Repaid in 2013 1,129 1,160 Cash at bank 390 599 Net debt 739 561 Afren net debt Other borrowings Total debt* * Includes capitalised borrowing costs of US$24 million (2012: US$30 million) 12 | 2013 Full Year Results Presentation Capital expenditure 2014 capex allocated to highest cash return projects FY 2013 capex spend US$716 million 36% 64% FY 2014E capex spend US$845 million 24% 76% Development E&A drilling and seismic activity 13 | 2013 Full Year Results Presentation Portfolio management Galib Virani Shareholder value 14 | 2013 Full Year Results Presentation Portfolio management Track record of accretive acquisitions 30.0 • Focus on financial Total entry and appraisal cost per bbl discipline (track record of acquiring at <US$4/bbl) 25.0 22.0 • Highly efficient use 20.0 creation • Exploration type US$/bbl of capital • Demonstrable value Consensus PV per bbl(1) 25.4 15.0 11.9 uplift with appraisal type risk 10.0 • Additional upside on 5.0 9.6 7.4 2.0 existing 2P base 1.9 1.2 1.0 0.7 0.0 Okoro (1) Source: Brokers research, Wood Mackenzie, Afren 15 | 2013 Full Year Results Presentation Ebok Okwok OML 26 (FHN) Kurdistan reigion of Iraq Capital allocation to the highest cash return projects Large opportunity set within our existing portfolio • Okoro/Ebok/Okwok recovery upside 2P Upside • Ebok deep • OML 115 • Okoro & FFD • Ebok & NFB Existing Existing developments Developments • Okwok Core • OML 26 • Barda Rash light oil Larger Large scale scale developments Developments • Ogo • Barda Rash heavy oil Frontier exploration Internal cash flow 16 | 2013 Full Year Results Presentation Industry Production Growth Iain Wright Shareholder value 17 | 2013 Full Year Results Presentation Production growth Moving forward with Okoro FFD Okoro Further Field Development Platform Okoro Main Platform Ima Terminal (Ailsa Craig 1 FSO) 18 | 2013 Full Year Results Presentation Okoro MOPU Production growth Ebok • Production in period 34,910 bopd (y-o-y increase +16%) • Well performance and rates in line with prognosis • 5 new production and 2 injector wells planned for 2014 Floating Platform Storage Offloading Vessel (FPSO) 19 | 2013 Full Year Results Presentation Floating Platform Storage Offloading Vessel (FPSO) A major production hub offshore south east Nigeria Planned new infrastructure at Ebok CFB and Okwok Offtake Tanker Floating Storage Offloading Vessel Planned Okwok Mobile Offshore Production Unit West Fault Block Wellhead Platform extended for NFB development Ebok Mobile Offshore Production Unit Central Fault Block Wellhead Platform Planned Okwok Wellhead Platform Planned Central Fault Block 2 Platform 20 | 2013 Full Year Results Presentation Production growth Self-funding double digit 5-year growth • 2013 production of 59,926 boepd Group net working interest production (boepd) gross (47,112 boepd net) - at top end of guidance 47,112 43,830 • 2014 guidance: 62,000 bopd gross c.40,000 (c.40,000 bopd net) – Cost recovery at Ebok – CFB extension installation downtime • Active work programme to produce and develop remaining 2P reserves 19,284 • Contingent resources being matured • High margin oil production self- 14,333 funding forward work programme 2010 21 | 2013 Full Year Results Presentation 2011 2012 2013 2014 Reserves Growth Iain Wright Shareholder value 22 | 2013 Full Year Results Presentation Reserves growth – Okoro track record Continued outperformance at Okoro 90 • Reservoir and production out- performance 80 70 • Significant further 2P recovery upside expected – in line with the original 3P reserves case mmbbls • Recovery to date 32.5 mmbbls 60 50 40 30 20 10 0 1P YE 2013 23 | 2013 Full Year Results Presentation 2P YE 2008 3P Cumulative gross production to end 2013 Reserves growth – more to come Significant remaining upside potential 500 mmbbls gross unrisked resource potential • Large remaining resource upside OML 115 resources upside 205.5 • Only 30% of total area resource potential reflected in 2P reserves category • Appraisal success at Okwok resulted in additional 46.6 mmbbls of gross 2P reserves Ebok 2P 103.8 Okwok 2P 46.6 • Low-risk appraisal and exploration drilling expected to move further resources into reserves Okwok 3C upside 26.3 24 | 2013 Full Year Results Presentation Ebok 3C upside 117.7 Continued exploration success • Okwok (2P – 47 mmbbls) 2013 • OPL 310 (gross P50 resources 774 mmboe, 3.8x larger than pre-drill estimates ) • Simrit-2 & 3 Ain Sifni (Kurdistan) • Maqlub-1 (Kurdistan) • Okoro extension (2P - 52 mmbbls) 2012 25 | 2013 Full Year Results Presentation • Ebok North Fault Block (2P - 25 mmbbls) • Simrit-2 Ain Sifni (Kurdistan) (1,509 ft net oil pay) Ogo “one of the largest discoveries in 2013” • 2,716 km2 3D marine seismic commenced • Looking to establish full extent of syn-rift play, new dip-closed structures in the north and east • Appraisal drilling to follow seismic 900 P50 gross resources mmboe 800 700 774 600 500 400 300 200 100 202 0 Pre-drill Post-drill (Ogo-1 and ST) 26 | 2013 Full Year Results Presentation Group reserves and resources mmboe Proved and Probable Contingent Resources Prospective Resources End 2012 270.3 840.7 7,127 Production (17.0) - Divestments (1.5) (1.9) Discoveries and extensions 26.4 (26.4) 310 Revision of previous estimates 7.7 (2.6) 2,594 286.0 809.8 10,031 End 2013 • Excludes management estimates of contingent resources at OML 113 (gross 167 mmboe) and additional upside at OML 26 (gross 144 mmboe) 27 | 2013 Full Year Results Presentation E&A programme Wells operating/new well spuds Gross unrisked resources (mmboe) Net unrisked resources (mmboe) PoS(2) Appraisal drilling 661 132 - Ethiopia Appraisal drilling 100 30 - 50%(1) Nigeria Exploration drilling 50 25 33% 74% Tanzania Exploration drilling 1,302 963 25% 50%(1) Nigeria Exploration drilling 65 33 40% Block 1 80% Kenya Exploration drilling 270 216 20% OPL 310 40%(1) Nigeria Appraisal drilling 774 310 - Asset W.I. Country Activity Ain Sifni 20% Kurdistan region of Iraq El Kuran-3 30% Ebok Deep Tanga OML 115 E&A well operating E&A well - new spud 1) Post cost recovery economic interest 2) PoS in relation to exploration drilling campaign only 28 | 2013 Full Year Results Presentation 1H 2014 2H 2014 Conclusions Osman Shahenshah Shareholder value 29 | 2013 Full Year Results Presentation Conclusions 2013 – Record financial results • Net production at top end of guidance 47,112 boepd • Revenue of US$1.6bn and cash flow from operations of US$1.2bn 2014 – Targeting low-risk reserves growth • Ogo: 3rd largest global discovery in 2013 – forward programme underway • Building on strong track record of delivery • Significant upside to 2P around existing assets 2014 – Allocating capital to highest cash return projects Next 5 years – double-digit CAGR production growth • Okoro continues to outperform • From within existing portfolio of assets • Ebok completely de-risked 30 | 2013 Full Year Results Presentation Appendix Production and development 32 - 40 Exploration and appraisal 41 - 54 31 | 2013 Full Year Results Presentation Certified reserves and resources Nigeria Côte d'Ivoire Nigeria -Sao Tome & Principe Kurdistan Region of Iraq Oil Oil Oil Oil (mmbbl) Gas(bcf) mmboe (mmbbl) Gas(bcf) mmboe (mmbbl) Gas(bcf) mmboe (mmbbl) Gas(bcf) mmboe Group Proved and Probable Reserves At 31 December 2012 Revisions of previous estimates Discoveries and extensions Acquisitions Divestments Production At 31 December 2013 154.5 7.7 26.4 (16.4) 172.1 - 154.5 7.7 26.4 (16.4) 172.1 0.3 (0.2) (0.1) - 9.2 (7.3) (1.9) - 1.9 (1.5) (0.4) - Contingent Resources At 31 December 2012 Revisions of previous estimates Discoveries and extensions Transfers to reserves Acquisitions Divestments At 31 December 2013 60.4 (2.6) (26.4) 31.4 - 60.4 (2.6) (26.4) 31.4 12.9 12.9 66.0 66.0 24.2 24.2 1.9 (1.9) - - Total Reserves and Contingent Resources At 31 December 2012 Revisions of previous estimates Discoveries and extensions Acquisitions Divestments Production At 31 December 2013 214.8 5.1 (16.4) 203.5 - 214.8 5.1 (16.4) 203.5 13.2 (0.2) (0.1) 12.9 75.2 (7.3) (1.9) 66.0 26.1 (1.5) (0.4) 24.2 1.9 (1.9) - - • - - - Total Group Oil (mmbbl) Gas(bcf) mmboe 114.0 (0.1) 113.9 - 114.0 (0.1) 113.9 268.8 7.7 26.4 (0.2) (16.7) 286.0 9.2 (7.3) (1.9) - 270.3 7.7 26.4 (1.5) (17.0) 286.0 1.9 (1.9) - 754.2 754.2 - 754.2 754.2 829.3 (2.6) (26.4) (1.9) 798.4 66.0 66.0 840.7 (2.6) (26.4) (1.9) 809.8 1.9 (1.9) - 868.2 (0.1) 868.1 - 868.2 (0.1) 868.1 1098.1 5.1 (2.1) (16.7) 1084.4 75.2 (7.3) (1.9) 66.0 1111.0 5.1 (3.4) (17.0) 1095.8 Excludes management estimates of contingent resources at OML 113 (gross 167 mmboe) and additional upside at OML 26 (gross 144 mmboe) 32 | 2013 Full Year Results Presentation Production and development programme 1. Offshore Nigeria: Ebok & Ebok NFB Production and Development activities map • 18 producing wells • CFB extension installation to be completed 1H 2014, NFB full field development to follow • 5 new producers and 2 water injectors planned 6 2. Offshore Nigeria: Okoro FFD • 10 producing wells • Early production from Okoro Further Field Development established • Further field development project sanctioned – Drilling expected to commence Q2 2015 3. Offshore Nigeria: Okwok • FDP received • Partnership looking a the option of pre-drilling two production wells targeted in H2 2014 once wellhead jacket has been installed. Wellhead jacket has been fabricated and is in transit to the field 4. Offshore Nigeria: OML 113 (FHN) • Aje field FDP submitted post-period end • First phase of development includes two subsea production wells, tied back to a leased FPSO • First oil expected late 2015 5. Onshore Nigeria: OML 26 (FHN) • Ogini FDP submitted, Isoko FDP expected shortly • Multi-well drill campaign to commence 1H 2014 6. Barda Rash • Production ramp-up progressing • Flow lines and facilities to be updated to bring BR-4 and BR-5 into production 7. Ain Sifni • Commerciality declared 33 | 2013 Full Year Results Presentation 7 5 2 1 3 4 Offshore Nigeria – Okwok Successful organic reserves growth OKW-11ST OKW-10 Cored Interval FB2 72’ Net Oil Pay FB1 95’ Net Oil Pay FB3 OKW-10ST Cored Interval 89’ Net Oil Pay 34 | 2013 Full Year Results Presentation 2P reserves addition of 47 mmbbls following successful E&A campaign Onshore Nigeria – OML 26 Full cycle E&P opportunity Full cycle E&P exposure • 2 developed fields (Ogini producing and Isoko) 0 5km • 3 undeveloped fields (Aboh, Ovo and Ozoro) • Crude export is via the Forcados terminal through a 29 km pipeline to the SPDC JV operated Eriemu manifold Currently producing only 1% of total resources 1% 20% 64% 962* mmboe 15% Currently Producing* * Independently estimated by NSAI, includes management estimates of additional upside at Aboh, Ovo and Ozoro of 144 mmboe 35 | 2013 Full Year Results Presentation Ogini and Isoko Phases 1,2 & 3 re-development* Aboh, Ovo, Ozoro 2C Prospective Resources Recent operational progress Significant momentum • 2 new 5.2 MMscf/d gaslift compressors installed and functional • LACT unit has been tied-in to the Eriemu manifold and commissioning is ongoing • New 2 x 30kbbl Sulzer export pumps installed and commissioning is ongoing • All flow lines/gaslift lines replacements done 2 new gaslift compressors (background) • Flow, temperature and pressure sensors have been installed on the Test Separator and all ligament valves replaced • Wireline intervention campaign ongoing to restore 2 strings in Ogini wells and Isoko wells to production 36 | 2013 Full Year Results Presentation LACT Unit installation at Eriemu New Export Pump at Ogini Ogini FDP in progress Multi-well drilling campaign expected to commence shortly • 37 new production wells, mostly horizontal, from existing well pads • 13 shot to medium term work-overs • Replacement of existing 10” OginiEriemu oil export pipeline with new 18” export pipeline Well Cellars for first five wells and Drilling Waste Pit Construction nearly done • Phased installation of two new 50,000 bbl/d 3-phase separation trains • Phased expansion of compression capacity to 40 mmcf/d for adequate gaslifting and Associated Gas (AG) export Casings and Wellheads in NPDC Base in Edjeba, Warri 37 | 2013 Full Year Results Presentation Offshore Nigeria – OML 113 FDP approval received • FDP focused on the development of the Cenomanian oil reservoir • First phase development concept consists of two subsea production wells, tied back to a leased FPSO • Wells most likely to consist of recompletion of existing Aje-4 well and a new well drilled to the Aje-2 subsurface location • Extensive 2,716 km2 3D marine seismic underway across OPL 310 and OML 113 38 | 2013 Full Year Results Presentation Kurdistan – Barda Rash field development Ramping-up production • Continued ramp up in production • Flow lines and facilities to be updated to bring BR-4 and BR-5 into production in 2014 • Domestic sales expected to be augmented by access to export pipeline Production facilities Storage tanks 39 | 2013 Full Year Results Presentation Trucking offtake station Viking I-10 rig on location at BR-4 Kurdistan – commercialising production at Barda Rash Export infrastructure established Shaikan Source: Wood Mackenzie 40 | 2013 Full Year Results Presentation Material exploration portfolio An attractive portfolio located in highly prospective basins Exploration Portfolio Gross prospective resources Net prospective resources (mmboe) (mmboe) 344 103 Kenya 4,443 3,959 Seychelles 2,994 2,245 Madagascar 846 761 Tanzania(1) 1,937 1,433 10,564 8,501 Nigeria(2) 1,943 787 Ghana 1,087 381 Côte d’Ivoire 87 57 South Africa 350 88 Other West Africa 252 35 Total Nigeria & other West Africa 3,719 1,347 Kurdistan region of Iraq(3) 917 183 Total Group 15,200 10,031 Country Ethiopia Total East Africa Low risk, quick to monetise Frontier area, major play opening potential 41 | 2013 Full Year Results Presentation Proven play concepts, significant upside (1) Resources upgrade on Tanga Block, Tanzania. Previously 1,681 mmboe gross prospective resources end December 2012 (2) Post FHN consolidation, includes OML 26 and OML 113. Includes resource upgrade on OPL 310, gross P50 resources at Ogo now estimated to be 774 mmboe (3) Prospective resources to be updated following successful Simrit-2 and Simrit-3 exploration wells in the Kurdistan region of Iraq Nigeria – OML 115 Several prospects and leads have already been identified Utue Field • High quality analogues at all levels • Drilling similar amplitudes and responses to discoveries in Ebok, Okwok, Iyak, Utue and Etisong • EUR 266 MMBO Iyak Field Ameena East prospect • EUR 150 MMBO • First exploration well expected late 2014 Etisong N-1 (2011) • Three reservoirs found. • Tested 8,500 bopd (40° API) Etisong-1 (2008) • TD: 7,204 ft; Multiple reservoirs. • 6,000 bopd reported test rate) 42 | 2013 Full Year Results Presentation Ufon South prospect Kurdistan – Ain Sifni – Commerciality declared World class acreage located within a prolific and proven oil trend Simrit-2 exploration well • Drilled to a total depth 12,467 ft following initial discovery • Total net oil pay encountered of 1,509 ft • Cumulative flow rate of 19,641 bopd achieved from the DST programme – EWT completed H2 2013, produced crude trucked to local markets Simrit-3 exploration well • Objective to explore the eastern extent of the Simrit anticline • Drilled to total depth of 12,300 ft – 9 DSTs in Triassic, Jurassic and Cretaceous heavy oil reservoirs reaching 6,293 bopd A – Well configured as a produced water disposal well ▲ A ▲ Shaikan 1Shaikan 1 Simrit-4 exploration well Jebel 1 Simrit 1 Jebel Simrit • Spudded in early 2014 - targeting the Jurassic and Triassic reservoirs Maqlub-1 exploration well • Maqlub-1 spudded June 2013 (110 day programme) • Untested structure along trend with Barda Rash • Well currently drilling ahead, hydrocarbons encountered in the Cretaceous and Jurassic reservoirs A B Data from Hunt Oil Middle East; interpretation from PetroTel 43 | 2013 Full Year Results Presentation A B 0 5 Km Loc. E. Simrit 1 Loc. E. Simrit 1 B B Afren East Africa Exploration Exploring East Africa`s petroleum systems East Africa Afren acreage Country Ethiopia Block 08 WI (%) Net mean prospective resources (mmboe) Blocks 7,8 30% 344 103 Kenya Block L17/L18 100% 2,021 2,021 Kenya Block 1 80% 2,422 1,938 Seychelles Blocks A,B 75% 2,994 761 Madagascar Block 1101 90% 846 2,245 Tanga 74% 1,937 1,433 10,564 8,501 ETHIOPIA Block 07 Asset Gross mean prospective resources (mmboe) Block 01 KENYA Block L17 Tanga Block Tanzania Block L18 Total TANZANIA SEYCHELLES Block 1101 • East African acreage covers over 82,000 km2 • Each block contains evidence of a working oil prone petroleum system MADAGASCAR • Actively moving prospects to ‘drill ready’ status following an extensive seismic acquisition programme Oil seeps and shows Oil discovery Gas discovery 44 | 2013 Full Year Results Presentation Afren East Africa Exploration Significant upgrade to prospectivity based on 2012/2013 seismic campaign Kenya Blocks L17 & L18 (100% & Operator) • 1,207 km 2D marine seismic and 474 km 2D shallow water and transition zone seismic completed • 1,000 km2 3D seismic and 120 km 2D onshore seismic completed • Two exploration wells planned in 2015 Block 1 (80% & operator) • 10,696 km airborne high resolution gravity and magnetic survey • 1,900 km 2D seismic completed Block 01 Block L17 Block L18 45 | 2013 Full Year Results Presentation • Planned exploration well late 2014 Afren East Africa Exploration Significant upgrade to prospectivity based on 2012/2013 seismic campaign Tanzania Tanga Block (74% & operator) • 755 km 2D shallow water Tanga Block • 930 km 2D marine seismic • 620 km2 marine 3D seismic completed • Two exploration wells planned in 2014 Ethiopia Block 7 & 8 (30%) • 308 km 2D seismic data • 3 wells on license • El Kuran-3 well spudded October 2013 Block 07 Block 08 Madagascar Block 1101 • Well deepened to target deeper Gumboro zone - TD of 11,574 ft reached in March 2014 Block 1101 (90% & operator) • 220 km vintage 2D seismic and 1 well • 9,014 km gravity and magnetic survey • 230 km 2D seismic completed • Additional 2D seismic and shallow borehole coring programme planned in 2014 Seychelles Area A & B (75% & operator) • 3,733 km of 2D seismic data • Multiple vintages of 2D seismic • 3,375 km2 3D completed • On-going seismic interpretation 46 | 2013 Full Year Results Presentation Ethiopia – Blocks 7 and 8 (Ogaden Basin) Appraisal of the El Kuran oil discovery underway Mid Hamanlei TWT Structure El Kuran -1 A’ A Faf A A’ Gabredarre U. Hamanlei M.Hamanlei • El Kuran-1 well with gas shows in Adigrat and potential oil zone identified in Hamanlei • El Kuran-3 well spudded in October 2013, TD extended to 11,574 ft to target deeper Gumboro zone 47 | 2013 Full Year Results Presentation ODA-10_29 Kenya – Block 1 Large under-explored sub-basin of the proven Ogaden Basin • Large under explored sub-basin of the Ogaden Basin, continuous with the Calub, Hilala and El Kuran discoveries • Numerous plays on block proven by offset successes in Ethiopia • Exciting inventory identified from newly acquired seismic • Drilling expected on the Khorof prospect, a large 4-way dip-closure down-dip of an oil seep El Kuran Oil & Gas Discovery (1972) Key Block 1 Lead Oil Seep EAX2011 Seismic Genale Gas Discovery (2011) S W N Bogal Gas Discovery (2010) 10km 48 | 2013 Full Year Results Presentation NE Kenya – Blocks L17/L18 Mombasa High identified as a low risk onshore drilling opportunity for 2015 MIDDLE EOCENE MATURITY MIDDLE JURASSIC MATURITY Sunbird discovery Sunbird discovery MOMBASA HIGH MOMBASA HIGH WASIN WASIN Tongoni & Tambarani Seeps Source typing in progress: believed to be Jurassic Oil seeps on Pemba Island Typed to Jurassic source rocks(?) Immature Eocene source rock in Pemba-5 well Tongoni & Tambarani Seeps Source typing in progress: believed to be Jurassic Oil seeps on Pemba Island Typed to Jurassic source rocks(?) Immature Eocene source rock in Pemba-5 well Maturity Immature Oil Gas Post-Mature • Unique opportunity to explore two play systems with prospects in prime position to have received charge from Jurassic and Eocene source rocks at different stages of basin evolution 49 | 2013 Full Year Results Presentation Kenya – Blocks L17/L18 Mombasa High identified as a low risk onshore drilling opportunity for 2015 SUNBIRD-1 Mombasa High • Oil dominated systems charged from Jurassic/Eocene marine source rocks • Block L18 in particular ideally positioned to have received charge from the Pemba and Tembo Trough source kitchen areas BASE TERTIARY DEPTH MAP 50 | 2013 Full Year Results Presentation Tanzania – Tanga Block A unique opportunity to explore a high potential oil prone basin CHUNGWA A Tongoni & Tambarani Seeps Source typing in progress: believed to be Jurassic CHUNGWA A NANASI A’ Oil seeps on Pemba Island Typed to Jurassic source rocks(?) Immature Eocene source rock in Pemba-5 well MKONGE PANGANI Maturity HERCULES MIDDLE EOCENE MATURITY Tongoni & Tambarani Seeps Source typing in progress: believed to be Jurassic NANASI A’ MKONGE PANGANI Oil seeps on Pemba Island Typed to Jurassic source rocks(?) Immature Eocene source rock in Pemba-5 well HERCULES MIDDLE JURASSIC MATURITY Immature Oil Gas Post-Mature • Unique opportunity to explore two play systems with prospects in prime position to have received charge from Jurassic and Eocene source rocks at different stages of basin evolution 51 | 2013 Full Year Results Presentation Tanzania – Tanga Block Prospectivity matured to drill ready status following extensive seismic acquisition programme Chungwa-1 A Shallow water 2D Deep water 3D Nanasi-1 A’ Nanasi/Mkonge Complex TWT (MSECS) SEAFLOOR Cretaceous deltaic reservoirs (1 kilometre thick) MID EOCENE A CHUNGWA-1 NANASI-1 A’ Middle Jurassic source rock within the oil window MKONGE-1 MID JURASSIC PEMBA TROUGH • Oil dominated petroleum system charged from Jurassic and Eocene marine source rocks on the flanks of the Pemba Trough 52 | 2013 Full Year Results Presentation Madagascar Block 1101 (90%) Block 1101 Sterling EXXON Afren EAX Block 1101 EXXON EXXON Antso and Mantaly AGIP 1970/71 1-3 tcf gas Bemolanga oil sands 20 bn bbls OOIP Tsimororo heavy oil 1-2 bn bbls OOIP NIko Manandaza 41° API Oil & significant gas Shell 1991 • 2 major structures mapped close to existing well with oil shows Manambolo wet gas / condensate discovery Petro-Canada 1987 • Evidence of working petroleum system through oil seeps • Structures at depths of 1,640 ft – 8,202 ft • Airborne gravity and magnetic survey and acquisition of 2009 MEIL SKL-2 oil discovery tested ca. 3,000 bopd 500 Km 230 km 2D seismic completed in 2012 augment existing 220 km 2D seismic data • Additional 2D seismic and a shallow borehole coring programme planned for Q2 2014 ahead of exploration drilling • Work programme focusing on the Mantaly prospect and the Antso lead 53 | 2013 Full Year Results Presentation Madagascar and the Seychelles Rift Play: Karoo – 3D seismic successfully completed over deepwater Area A Bonit Lead TWT (Seconds) 3.0 Calub Tarbaj Hill n tri s cu la Seychelles Majunga e Ria Kalui-1 Wingayongo 5km Seismic Line from EAX 2012 Marine 3D Seismic Survey – Area A - Seychelles Bemolanga Tsmiroro 0.0 South Morondava TWT (Seconds) Kisangire -1 Buzi Termane Pande 4.0 1.0 2.0 TRIASSIC 54 | 2013 Full Year Results Presentation Seismic Line from EAX 2008 Land Seismic Survey - Block 1101 Madagascar
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