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● Established in Aug 1983, pursuant to ‘Korea Gas Corporation Act’ ● Korean Government holds stakes of 54.56% - Korean Government(26.15%), KEPCO(20.47%) and Local Governments(7.93%) ● Listed on Korea Stock Exchange(KSE) in Dec 1999

Korean Gov. Commitment to KOGAS

KOGAS’ Operational & Financial Excellence (As of April, 2018)

KOGAS Act Strong Ties with the Government Critical Role of KOGAS in Korea

— Founded in August 1983, pursuant — Direct and indirect Gov. ownership — Korea’s only fully-integrated natural gas to the Korea Gas Corporation Act 54.56% provider holding monopolistic position — Gov. participated in capital increase — Mandates KOGAS the monopolistic — Imports approximately 88% of Korea’s position in Korean LNG market (Nov. 2013) demand for LNG — Reinstatement of the Cost Pass- — Owns and operates nationwide pipeline Through System and guaranteed profit network and storage tanks by Gov. — Secures resources through overseas oil & gas projects Domestic Business Overseas(E&P) Business Stable Profitability Growth Opportunity

Supply of LNG Purchasing Construction & Exploration and Production(E&P) rd Natural Gas - World 3 Operation of LNG Mozambique, , Myanmar, etc. - City Gas and largest LNG buyer Storage Tanks생 and - Engines for Business Expansion & Growth Power Sector Nationwide산 Pipelines - Monopoly ● Importing 88% of Korea’s natural gas demands ● 15 Long-term(20 to 25 years) contracts in 10 countries, mixed with ST, MT, spot ● Various efforts to diversify supplier, contract duration, pricing mechanism

Qatar (3) 러시Sakhalin(1)아 사할린(1) 4.92MM tons/yr 1.5MM tons/yr The United States(1) 2.1MM tons/yr 2.8MM tons/yr 2MM tons/yr Malaysia(2) Yemen(1) 2MM tons/yr 2MM tons/yr 2MM tons/yr LNG Import 브Brunei(1)루나이(1) (Unit: thousand tons) Oman(1) 1.0MM tons/yr 4MM tons/yr 인Indonesia(2)도네시아(3) 1MM tons/yr Portfolio(2) 0.7MM tons/yr 3.6MM tons/yr Australia(1)호주(4) 2 MM tons/yr 3.5MM tons/yr ● Currently operating 72 storage tanks in 4 LNG receiving terminals (storage capacity of 5.23mmton, 11.47mmkl) ● Nationwide pipeline network (4,790km) managed by 397 stations

Existing Terminals (As of Dec ‘17) Samcheok Incheon Pyeongtaek Tongyeong Samcheok Total Incheon Start-up 1996 1986 2002 2014 – Pyeongtaek No. of Tanks 20 23 17 12 72

CAPEX Forecast* Tongyeong (in KRW bn)

• Main pipeline - Additional 261km will be added reaching a total grid 5,051km (3,139 mile) by 2021 • Terminals - Incheon expansion(#21~23tanks) : Oct ’15 ~ Jul ’20 (0.2mmkl x 3) - Jeju : 2 tanks are under construction(0.045mmkl x 2, Feb. ‘17~Aug. 19)

* Source : FY18 ~ 20 based on the mid-long term financial management plan approved by the government in Sep. 2017(total capex)

● 24 Projects in 13 countries (as of March, 2018) (3 Exploration, 9 Development/Production, 8 LNG Liquefaction/Receiving, 4 Downstream) ● Operating 2 Projects (Iraq Akkas, Mozambique Maputo Pipeline)

Exploration (3)

Development/Production(9)

LNG Project (8) Downstream (4) Project Overview Performance

Additional Well and More Production • 2010 : Startup of commercial operation • Production Volume : Total 6.5 billion barrels • Partner : • 2017 OP : 152billion Korean won • Contract Type : TSC (Technical Service Contract) • 1Q 2018 OP : 22 billion Korean won

2017 In bn 1Q Difference Full KRW 2018(A) 1Q(B) (A-B, %) Year Revenue 80 108 485 -28(-25.9%)

OP 22 31 152 -9(-29.0%)

NI 18 29 139 -11(-37.9%)

• Average production : 420kbbl/d (1Q 2017) → 430kbbl/d (1Q 2018) Project Overview Performance

• Production Volume : Total 670 million barrels • Sep 2014 : Startup of commercial operation (more than 115,000bbl/d at least for 7 years (production : 15,000bbl/d) during 20 years of production period) • 2017 OP : 11.8 billion won • Partners : , , TPAO • 1Q 2018 OP : 5 billion won • Contract Type : TSC(Technical Service Contract) (1Q 2018 Avg 78,000bbl/d) ※ Consistent increase in production will generate incremental operating profit

1Q 2017 Difference (In bn won) 2018 (A) (A-B) 1Q(B) Full Year

Revenue 85.1 63.6 284.4 21.5(33.8%)

OP 5.1 11.8 21.2 -6.7(-56.8%)

NI 5.6 12.4 -75.3 -6.8(-54.8%) Project Overview Performance

• Total of 23 exploration wells drilled • Nov 2013 : Startup of Commercial production • Development of gas field and construction of pipeline • 2017 OP : 46 billion won : Aug ’09 ~ Jul ’13 • 1Q 2018 OP : 17 billion won • Production period : Jul ’13 ~ ’38 2017 1Q Difference In bn won Full 2018(A) 1Q(B) (A-B,%) Scope of Business Stake Year

Gas field Production, Marketing, Operation 8.5% (offshore gas field) Revenue 25 21 75 4(19.0%)

Offshore Construction and Operation 8.5% 17 4(30.1%) pipeline (Approx.110km) OP 13 46 Onshore Construction and Operation 4.17% pipeline (Approx. 800km) NI 17 13 46 4(30.1%)

• Gas Field & offshore pipeline : Posco Daewoo(51%), OVL(17%), MOGE(15%), GAIL(8.5%) • Onshore pipeline : CNPC(50.9%), Posco Daewoo%), MOGE(7.37%), OVL(8.35%), GAIL(4.17%) Project overview Performance Gas Field Browse Basin, 475km offshore of Broome, Western Australia • Made a Final Investment Decision in March 2012 Production Design Capacity 3.6MMton/year - Develop Prelude/Concerto gas into a floating LNG facility Condensate 1.3MMton/year • World’s first FLNG development project LPG 0.4MMton/year • Made an SPA regarding 360,000 tons Participants KOGAS 10%, Shell 67.5%(Operator), • Expect first commercial production from 3Q 2018 Inpex 17.5%, CPC 5% and generate an operating income from 2019

✽ CAPEX status and forecasts (Unit : US$Million)

FY ~2014 2015 2016 2017 2018(E) Total

Amount 1,169 193 164 196 159 1,881

Project Overview Plan

• Development of Surgil Gas Field, and Sales of Gas and • Oct 2015 : Construction of Chemical Plant Completed Chemical Products • • Products : HDPE* 0.38Mtpa, PP 0.08Mtpa, Feb 2016 : Startup of commercial operation Methane2.5Mtpa • Equity Method gains of W40bn in 2017 * HDPE(High Density Polyethylene), PP(poly propylene) • Equity Method gains of W14.8bn in 1Q 2018 • Reserves : Surgil gas field 97BCM(71MMton) “We expect to make annual average earnings • Partners : UNG 50%, Kor-Uz Gas Chemical Investment *50% * KOGAS 22.5%, Lotte Chemical 24.5%, GS E&R 3% of 50 billion won in this project until 2041” * Brent price assumption : $45/bbl with annual average increase of 1.9% * BCM (Billion Cubic Meter) : 1BCM=0.73MMton of LNG Project Overview Plan

• Terms of contract : 2007 ~ 2053 • Plans to develop each field one by one for entering commercial • Partners : KOGAS 10%, Galp 10%, ENH 10% stage EEA 70% - (Coral FLNG) Made a final investment decision(FID) at June 2017 * EEA : Eni/Exxon Mobile 35.7% respectively, CNPC 28.57 - (Mamba LNG) Working on FID in 2019, plans to enter • Gas initially in Place : Approx. 85 Tcf commercial production in 2024 (expected) - (Mamba Project) Area 1 and 4 straddling project, Co-development between participants of two areas

Coral field (C1)

Mamba field (M2)

Mamba structure (M1-1, M1-2, M1-3)

Agulha structure (A1) Project Overview

• Area : 12,523 km2 (southeastern offshore of Cyprus) • Terms of contract : 2013 ~ 2018 • Partners : KOGAS 20%, ENI 80% (operator) • Gas initially in Place : Approx. 2.77 Tcf • Major activities - May 2012 : Exploration and Production Sharing Contract - Jan 2014 : 2D(7,086 km2), 3D(4,744 km2 ) seismic aq. - Mar 2015 : 2 exploration wells drilled

Plan

• Amendment of contract to extend the terms of contract to Jan 2019 • 1 exploration well remaining for commitment in 2018

Project Overview Performance

• Sep 24, 2015 : 1st cargo loaded Gas Field Arcadia, Fairview, Roma, and • Oct 27, 2015 : 1st cargo discharged at PyeongTaek Scotia Gas Field in the East Australia • May 27, 2016 : Train 2 production started Proven 5.4 Tcf (101 MMton) Reserves • 1Q 2018 OP : 14 billion won (19 cargos) Liquefaction Design Capacity 7.8MMton/year ✽1 cargo : about 66,000 tons Plant (3.9MMton/year x 2 Trains) u Technology of CBM development being optimized Participants KOGAS 15%, Santos 30%(Operator), Petronas 27.5%, Total 27.5% 2017 1Q Difference In bn won Full 2018(A) 1Q(B) (A-B) Year

Revenue 110 95 436 15(15.8%)

25 OP 14 -11 -21 (convert into OP)

NI -11 -28 -997* 17(60.7%) Project Overview

• Area : 180 km2 (Horn River), 394 km2 (Westcut Bank) • Terms of contract : ’10~ Horn River basin • Partners : KOGAS 50%, EnCana 50% (operator) • Resources (2P+2C) : 871 Bcf (HR), 691 Bcf (WC) • Feb 2010 : Farm-in contract • 34 horizontal wells drilled and hydraulic fractured • Cumulative production : eq. 1.4MM ton of LNG (end 2017)

Plan

• Adjust development plan in line with Market situation and progress of Canada LNG project

u Conduct R&D activities on enhancing productivity of Glaser et al. (2013)

Various productivity in a shale gas play with area and formation 1 9 Engineering factors of ↓ Optimization ↓ Productivity partly enhanced 2 0 Geological, geochemical, geomechanical factors ↓ Sweet spotting ↓ Productivity significantly enhanced 2 1 Procedure of sweet spotting on Shale Gas

Forecast fracturing efficiency & sweet spot in shale gas reservoir Optimizatoin of drilling path in shale gas reservoir

Forecast fracturing efficiency & sweet spot in shale gas reservoir