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North Slope Borough, AK oil and gas wells

9,817 wells: 4,834 active, 4,300 plugged, run by 70 operators.

North Slope Borough, AK has more wells on record than any other Alaska borough: 9,817, or 81% of the state's 12,059. 4,834 of its wells (49%) are active, above the statewide share of 46%. Another 131 are shut in or temporarily abandoned. Of the 8,184 wells here with a type on record, 75% are oil wells, 23% disposal or injection wells and 1% gas wells. Drilling records here go back to 1944. Of the 7,740 wells with a drilling date, 1,118 (14%) were drilled in 2016 or later, the most recent in 2026. Wells with a recorded depth average 11,419 ft. 70 operators have wells here. The largest by active wells is Hilcorp Alaska, LLC, with 2,624 active (54% of the borough's active wells).

Figures from the Alaska Oil and Gas Conservation Commission, updated 2026-10-16.

Top operators in North Slope

OperatorActiveWells here
Hilcorp Alaska, LLC2,6243,636
ConocoPhillips Alaska, Inc.2,1153,216
Oil Search (Alaska), LLC3253
North Slope Borough1840
USGS1822
Cook Inlet Energy, LLC.1728
Mustang Holding, LLC47
ASRC Consulting & Environmental Services, LLC34
Great Bear Pantheon, LLC210
Brooks Range Petroleum114
BP Exploration (Alaska) Inc.01,763
ARCO Alaska Inc.0421
Hilcorp North Slope, LLC0126
Eni US Operating Co. Inc.0107
US Dept of Interior045
Sohio Alaska Petroleum Company028
Exxon Corporation022
Atlantic Richfield Company021
Repsol E&P USA, Inc.020
Mobil Oil Corporation019
Union Oil Company of California016
Chevron USA Inc.015
Texaco Inc.014
Pioneer Natural Resources Alaska Inc.012
Anadarko Petroleum Corporation010

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusTypeOperator
COLVILLE RIV UNIT CD1-19A 50-103-20294-0100Temporarily abandoned Injection🔒 Sign in free
COLVILLE RIV UNIT CD1-20 50-103-20503Active Injection🔒 Sign in free
COLVILLE RIV UNIT CD1-21 50-103-20362Active Injection🔒 Sign in free
COLVILLE RIV UNIT CD1-21PB1 50-103-20362-7000Plugged Unknown🔒 Sign in free
COLVILLE RIV UNIT CD1-22 50-103-20250Cancelled / expired Oil🔒 Sign in free
COLVILLE RIV UNIT CD1-22A 50-103-20250-0100Plugged Oil🔒 Sign in free
COLVILLE RIV UNIT CD1-22B 50-103-20250-0200Active Oil🔒 Sign in free
COLVILLE RIV UNIT CD1-22BPB1 50-103-20250-7100Plugged Unknown🔒 Sign in free
COLVILLE RIV UNIT CD1-22PB1 50-103-20250-7000Plugged Unknown🔒 Sign in free
COLVILLE RIV UNIT CD1-23 50-103-20301Active Injection🔒 Sign in free
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North Slope Borough, AK well questions

How many oil and gas wells are in North Slope Borough, AK?

9,817 wells are on record: 4,834 active, 131 shut in or temporarily abandoned and 4,300 plugged.

Who operates the most wells in North Slope Borough, AK?

Hilcorp Alaska, LLC, with 2,624 active wells and 3,636 wells on record here. The table above lists the top operators.

Are new wells still being drilled in North Slope Borough, AK?

Yes. 1,118 wells were drilled in 2016 or later, the most recent in 2026.