Alaska PeninsulaOil and Gas Study

Division of Oil and GasSeptember 2003

Alaska Department ofNaturalResources

http://www.dog.dnr.state.ak.us/oil/products/products.htm

Proposed Alaska Peninsula

Areawide Oil and Gas Lease

Sale Area

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Bristol Bay Basin Exploration

License Study Area

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Alaska Peninsula Areawide Oil and Gas Lease Sale and Bristol Bay Basin Exploration

License Timeline

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Onshore Exploration WellTypical Permit Process

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Oil Derrick at Puale Bay (1903)

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The Petroleum Fields of the Pacific Coast of Alaska, USGS Bulletin No. 250, 1905, Plate VII

Active Oil and Gas Seep

Brown oil and natural gas (fizzy bubbles) comes out of this hole in the ground continuously. There are several oil creeks in Alaska - not a very original name. This particular oil creek feeds into Puale Bay on the western side of the Alaska Peninsula. There is continuous seepage of oil into the creek throughout its upper part. The lower

part of the creek is a salmon spawning area where salmon runs are counted by the State of Alaska.

dwb 09/03Natural Oil Seeps in South Eastern Alaska, Slides from Field Studies in 1993, 1994 and 1999, D.S. Page, Bowdoin College Chemistry Department

Alaska Peninsula Geologic Map

dwb 09/03

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Bering Sea

Bristol Bay

Bristol Bay Basin Exploration License Area

Proposed Alaska PeninsulaAreawide Oil and Gas

Lease Sale Area

LEE

PEARL

NO. 2NO. 1

NO. 2

NO. 4

NO. 3

NO. 2

NO. 1

ALASKA

GRINER

UGASHIK

MCNALLY

LATHROP

GRAMMER

DRY BAY

DRY BAY

BECHAROF

FINNEGAN COSTELLO

BIG RIVER

ANCHOR PT

PAINTER CK

GREAT BASINS

GREAT BASINS

BEAR CK UNIT

WIDE BAY UNIT

STARICHKOF ST

SANDY RIV FED

OCS 0454(FERN)

OCS 0161(HAWK)

CANOE BAY UNIT

NINILCHIK UNIT

OCS 0113(IBIS)

OCS 0136(BEDE)

OCS 0168(COHO)

OCS 0168(COHO)

OCS 0086(GUPPY)

OCS 0097(RAVEN)

OCS 0466(BERTHA)

DAVID RIVER USA

DAVID RIVER USA

PORT HEIDEN UNIT

OCS 0243(FALCON)

OCS 0124(S ARCH)

OCS 0124(S ARCH)

OCS 0511(SEGULA1)

OCS 0477(CAMELOT)

OCS 0152(BOWHEAD)

OCS 0527(TUSTMNA2)

OCS 0530(TUSTMNA1)

OCS 0248(CARDINAL)

STARICHKOF ST UNIT

OCS 0248(CARDINAL)

OCS 0463(MONKSHOOD)

OCS7611COST-ST GRGE

OCS8218 COST N ALTN

OCS 77-01(KSSD-KOD)

OCS 76-35(KSST-KOD)

KONIAG CHEVRON USA

HOODOO LK UNIT USA

HOODOO LK UNIT USA

7705 CST-LWER CK IN

OCS8219 COST-ST GRGE

CATHEDRAL RIVER UNIT

OIL SEEP R

OIL SEEP R

OIL SEEP R

OIL SEEP

OIL SEEP

GAS SEEP

GAS SEEP

OIL SEEP R

OIL SEEP

OIL SEEP R

OIL SEEP D

OIL SEEP A, D

OIL SEEP A, R

OIL SEEP A, R

OIL SEEP A, R

OIL SEEP A, D

OIL SEEP A, U

OIL SEEP A, R

OIL-BEARING OUTCROP

OIL-BEARING OUTCROP

Unga

Ekuk

Uyak

Sanak

Ekwok

Egegik

Kipnuk

Togiak

Naknek

KodiakUganik

Akhiok

KarlukUgashik

Chignik

Iliamna

Igiugig

Chiniak

Afognak

Kaguyak

Ayakulik

Cold Bay

Newhalen

Kokhanok

Platinum

PortlockLevelock

Ouzinkie

BelkofskiKing Cove

Nondalton

Koliganek

Quinhagak

Aleknagik

Manokotak

Pedro Bay

PerryvilleIvanof Bay

Sand Point

False Pass

Kongiganak

Womens Bay

Port Lions

Old Harbor

Larsen BayPilot Point

Port Heiden

Port Moller

King Salmon

Chignik Lake

Squaw Harbor

New Stuyahok

Kwigillingok

Goodnews Bay

South Naknek

Nelson Lagoon

Port Alsworth

Portage Creek

Clark's Point

Chignik Lagoon

OIL SEEP

GAS SEEP OIL SEEP

165°0'0"W

165°0'0"W

160°0'0"W

160°0'0"W

155°0'0"W

155°0'0"W

55°0

'0"N

55°0

'0"N

60°0

'0"N

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Gulf of

AlaskaBrist

ol Bay

Bering Sea

ChukchiSea

Juneau

CANADA

RUSSIA

Nome

SitkaKodiak

Bethel

Barrow

ValdezJuneau

Cold BayUnalaska

Fairbanks

Ketchikan

Anchorage

Dillingham

Prudhoe Bay

S e p t , 2 0 0 3

Alaska Peninsula Geologic Cross Section

Alaska Peninsula

StratigraphicSection

• Numerous oil seeps are present along the southern half of the Alaska Peninsula.

• 26 wells have been drilled onshore since 1903, the latest being the Amoco Becharof #1 in 1985. One offshore stratigraphic test was drilled in 1983, the ARCO North Aleutian COST Well #1.

• The northern half of the Alaska Peninsula is a low relief coastal plain underlain by a thick sequence (18,000+ feet) of Tertiary strata that is contiguous with the Bristol Bay Basin to the north. Here the setting is very good for both structural and stratigraphictraps as well as the likelihood of encountering good to locally excellent reservoir quality rocks.

Alaska Peninsula/ Bristol Bay BasinHydrocarbon Potential

• Reservoir quality should be considered the highest risk as rocksderived from volcanic and plutonic source areas may give rise topore plugging cements and clays.

• Oil and gas shows are evident in many of the wells. No commercial flow of oil has been proven to date.

• Hyrdocarbon source rocks of Tertiary age appear to be largely gas prone. Deeper Mesozoic strata may have both gas and oil generating potential.

• Seismic control on the Alaska Peninsula is largely poor and archaic. Latest technology in seismic acquisition and processing is needed to further define prospects.

Alaska Peninsula/ Bristol Bay BasinHydrocarbon Potential