ANS June production down 3June ANS production down 3.5% from Click here to go to the full PDF version of this issue, with any maps, photos or other artwork that appears in some of the articles. Month-over-month decline led by Milne, Greater Mooses Tooth, Prudhoe Bay; gains at Kuparuk River, Hilcorp Alaska's smaller fields Kristen Nelson Petroleum News Alaska North Slope liquids production averaged 462,689 barrels per day in June, down 16,673 bpd, 3.48%, from a May average of 479,361 bpd, but up 4.93% from a June 2024 average of 440,929 bpd. ANS crude averaged 414,566 bpd in June, 89.6% of the total, down 11,859 bpd, 2.78%, from a May average of 426,426 bpd but up 5.57% from a June 2024 average of 392,710 bpd. ANS natural gas liquids averaged 48,123 bpd in June, 10.4% of the total, down 4,813 bpd, 9.09%, from a June average of 52,936 bpd and down 0.2% from a June 2024 average of 48,219 bpd. North Slope NGLs come primarily from Prudhoe Bay but also from Northstar and Endicott. Production data are from the Alaska Oil and Gas Conservation Commission which reports production by field and well on a month delay basis. The temperature in the North Slope Borough averaged 48.6 degrees F in June, up from 25.6 degrees F in May, and up from 47.2 degrees in June 2024. The 1925-2024 mean for June is 44.3 degrees F, 4.3 degrees cooler than the June 2025 average. Temperature data are from the county time series maintained by NOAA's National Centers for Environmental Information, which has North Slope Borough temperatures beginning in 1925. Month-over-month increases The largest month-over-month increase by volume was at the ConocoPhillips Alaska-operated Kuparuk River field, which averaged 89,937 bpd in June, up 1,324 bpd, 1.49%, from a May average of 88,613 bpd and up 36.13% from a June 2024 average of 66,070 bpd. In addition to the main Kuparuk pool, Kuparuk produces from Coyote, Tabasco, Tarn, Torok and West Sak. ConocoPhillips is the majority working interest owner at Kuparuk. ExxonMobil, the only other WIO, holds less than 3%. Hilcorp Alaska's Endicott averaged 5,692 bpd in June, up 385 bpd, 7.26%, from a May average of 5,307 bpd but down 5.78% from a June 2024 average of 6,041 bpd. Endicott crude averaged 5,011 bpd in June, 88.03% of the total, up 255 bpd, 5.36%, from a May average of 4,756 bpd but down 5.81% from a June 2024 average of 5,320 bpd. Endicott NGLs averaged 681 bpd in June, 11.97% of the total, up 130 bpd, 23.65%, from a May average of 551 bpd but down 5.56% from a June 2024 average of 721 bpd. Hilcorp Alaska's Oooguruk averaged 6,545 bpd in June, up 241 bpd, 3.82%, from a May average of 6,304 bpd and up 17.92% from a June 2024 average of 5,550 bpd. Hilcorp Alaska acquired Oooguruk from Eni in November 2024. Hilcorp Alaska's Northstar averaged 4,812 bpd in June, up 93 bpd, 1.97%, from a May average of 4,719 bpd but down 9.22% from a June 2024 average of 5,300 bpd. Northstar crude averaged 2,444 bpd in June, 50.79% of the total, up 76 bpd, 3.21%, from a May average of 2,368 bpd but down 12.38% from a June 2024 average of 6,041 bpd. Northstar NGLs averaged 2,368 bpd in June, 49.21% of the total, up 17 bpd, 0.71%, from a May average of 2,351 bpd but down 5.71% from a June 2024 average of 2,511 bpd. Hilcorp Alaska's Nikaitchuq averaged 17,272 bpd in June, up 34 bpd, 0.2%, from a May average of 17,238 bpd and up 19.97% from a June 2024 average of 14,396 bpd. Hilcorp Alaska acquired Nikaitchuq from Eni in November 2024. Oil Search (Alaska) continues to test wells at Pikka, which is not yet in production, with two wells (producing for a combined total of six days) contributing an average of 541 bpd to ANS crude production in June. The company began testing wells at the field in September 2023. Month-over-month decreases The Hilcorp North Slope-operated Prudhoe Bay field, the Slope's largest, had the largest month-over-month volume decrease, averaging 244,169 bpd in June, down 8,220 bpd, 3.26%, from a May average of 252,390 bpd, but up 0.59% from a June 2024 average of 242,745 bpd. Prudhoe crude averaged 199,096 bpd in June, 81.54% of the total, down 3,261 bpd, 1.61%, from a May average of 202,357 bpd, but up 0.68% from a June 2024 average of 197,758 bpd. Prudhoe NGLs averaged 45,073 bpd in June, 18.46% of the total, down 4,960 bpd, 9.91%, from a May average of 50,033 bpd but up 0.19% from a June 2024 average of 44,986 bpd. In addition to the primary reservoir, production volumes from Prudhoe include Aurora, Borealis, Lisburne, Midnight Sun, Niakuk, Polaris, Point McIntyre, Put River, Raven and Schrader Bluff. ConocoPhillips Alaska holds 36.5% of the working interest ownership at Prudhoe; ExxonMobil Alaska Production holds 36.4%; operator Hilcorp North Slope holds 27.1%. Hilcorp Alaska's Milne Point averaged 42,962 bpd in June, down 5,411 bpd, 11.19%, from a May average of 48,373 bpd and down 4.16% from a June 2024 average of 44,827 bpd. Milne Point produces primarily from the Schrader Bluff and Kuparuk oil pools, with minor Sag River and Ugnu volumes. ConocoPhillips Alaska's Colville River averaged 32,593 bpd in June, down 1,374 bpd, 4.05%, from a May average of 33,967 bpd and down 5.68% from a June 2024 average of 34,556 bpd. In addition to oil from the main Alpine pool, Colville includes production from the Nanuq and Qannik oil pools. ConocoPhillips Alaska's Greater Mooses Tooth in the National Petroleum Reserve-Alaska averaged 11,298 bpd, down 3,079 bpd, 21.42%, from a May average of 14,377 bpd and down 26.58% from a June 2024 average of 15,388 bpd. Savant Alaska's Badami averaged 2,217 bpd in June, down 205 bpd, 8.48%, from a May average of 2,423 bpd, but up 164.05% from a June 2024 average of 840 bpd. Savant is a Glacier Oil and Gas company. Hilcorp Alaska-operated Point Thomson averaged 4,186 bpd in June, down 72 bpd, 1.69%, from a May average of 4,258 bpd, but up 1.64% from a June 2024 average of 4,118 bpd. Operator Hilcorp holds 36.148% of Point Thomson, with ExxonMobil Alaska Production the majority working interest owner at 61.637% and other owners collectively holding 2.215%. Mustang Holdings' Southern Miluveach averaged 463 bpd in June, down 47 bpd, 9.19%, from a May average of 510 bpd; the field was not in production in June 2024. Cook Inlet up 2.34% Cook Inlet crude production averaged 7,774 bpd in June, up 180 bpd, 2.34%, from a May average of 7,597 bpd, but down 1.51% from a June 2024 average of 7,894 bpd. Hilcorp Alaska's McArthur River, Cook Inlet's largest oil producer, averaged 2,453 bpd in June, up 55 bpd, 2.28%, from a May average of 2,398 bpd and up 35.53% from a June 2024 average of 1,810 bpd. Hilcorp's Granite Point averaged 1,659 bpd in June, up 73 bpd, 4.61%, from a May average of 1,586 bpd but down 19.77% from a June 2024 average of 2,068 bpd. Hilcorp's Trading Bay averaged 931 bpd in June, up 177 bpd, 23.47%, from a May average of 754 bpd and up 2.78% from a June 2024 average of 905 bpd. Cook Inlet Energy's West McArthur River averaged 801 bpd in June, down 144 bpd, 15.2%, from a May average of 945 bpd and down 16.44% from a June 2024 average of 959 bpd. CIE is a Glacier Oil and Gas company. Cook Inlet Energy's Redoubt Shoal averaged 639 bpd in June, up 21 bpd, 3.38%, from a May average of 618 bpd and up 11.44% from a June 2024 average of 573 bpd. Hilcorp's Swanson River averaged 637 bpd in June, down 13 bpd, 2.07%, from a May average of 651 bpd and down 1.38% from a June 2024 average of 646 bpd. BlueCrest's Hansen averaged 518 bpd in June, down 2 bpd, 0.3%, from a May average of 519 bpd and down 20.32% from a June 2024 average of 650 bpd. Hilcorp's Beaver Creek averaged 137 bpd in June, up 13 bpd, 10.6%, from a May average of 124 bpd but down 46.98% from a June 2024 average of 258 bpd. ANS crude oil production peaked in 1988 at 2.1 million bpd; Cook Inlet crude oil production peaked in 1970 at more than 227,000 bpd. Print this story | Email it to an associate.

Cook Inlet gas down 2.5% Natural gas production in Cook Inlet averaged 189,098 thousand cubic feet per day in June, down 4,757 mcf per day, 2.45%, from a May average of 193,855 mcf per day and down 3.29% from a June 2024 average of 195,518 mcf per day. Volumes are calculated from Alaska Oil and Gas Conservation Commission data, reported on a month-delay basis. For natural gas AOGCC reports measurements in thousands of cubic feet, mcf. The majority of inlet gas production, 81.72% in June, 154,538 mcf per day, was from six large fields. Beluga River, operated by Hilcorp Alaska on behalf of itself and majority working interest owner Chugach Electric Association, averaged 43,463 mcf per day in June, 22.98% of inlet production, up 1,028 mcf per day, 2.42%, from a May average of 42,435 mcf per day and up 10.12% from a June 2024 average of 39,470 mcf per day. Hilcorp's North Cook Inlet averaged 37,735 mcf per day in June, 19.96% of inlet production, down 704 mcf per day, 1.83%, from a May average of 38,440 mcf per day but up 0.72% from a June 2024 average of 37,464 mcf per day. Hilcorp's Ninilchik averaged 35,064 mcf per day in June, 18.54% of inlet production, up 1,930 mcf per day, 5.82%, from a May average of 33,135 mcf per day and up 6.66% from a June 2024 average of 32,876 mcf per day. Hilcorp's Kenai gas field averaged 17,135 mcf per day in June, 9.06% of inlet production, down 715 mcf per day, 4%, from a May average of 17,849 mcf per day and down 20.36% from a June 2024 average of 21,514 mcf per day. Hilcorp's McArthur River averaged 10,821 mcf per day in June, 5.72% of inlet production, down 434 mcf per day, 3.86%, from a May average of 11,255 mcf per day and down 5.24% from a June 2024 average of 11,420 mcf per day. Furie's Kitchen Lights averaged 10,320 mcf per day in June, 5.46% of inlet production, down 3,128 mcf per day, 23.26%, from a May average of 13,448 mcf per day but up 0.3% from a June 2024 average of 10,289 mcf per day. Sixteen smaller producing fields account for the remaining 18.28% of inlet production. Hilcorp's Swanson River averaged 6,491 mcf per day in June, down 1,103 mcf per day, 14.52%, from a May average of 7,594 mcf per day and down 38.41% from a June 2024 average of 10,540 mcf per day. Hilcorp's Beaver Creek averaged 4,622 mcf per day in June, down 845 mcf per day, 15.45%, from a May average of 5,466 mcf per day and down 39.47% from a June 2024 average of 7,635 mcf per day. Hilcorp's Ivan River averaged 4,270 mcf per day in June, up 551 mcf per day, 14.82%, from a May average of 3,719 mcf per day and up 100.52% from a June 2024 average of 2,129 mcf per day. Hilcorp's Cannery Loop averaged 4,170 mcf per day in June, down 67 mcf per day, 1.58%, from a May average of 4,237 mcf per day and down 3.65% from a June 2024 average of 4,328 mcf per day. Hilcorp's Deep Creek averaged 4,115 mcf per day in June, down 150 mcf per day, 3.52%, from a May average of 4,265 mcf per day but up 22.81% from a June 2024 average if 3,351 mcf per day. Hilcorp's Granite Point averaged 2,440 mcf per day in June, up 265 mcf per day, 12.17%, from a May average of 2,176 mcf per day but down 21.49% from a June 2024 average of 3,108 mcf per day. Hilcorp's Lewis River averaged 2,314 mcf per day in June, down 104 mcf per day, 4.29%, from a May average of 2,417 mcf per day and down 51.72% from a June 2024 average of 4,793 mcf per day. Hilcorp's North Fork, acquired from Vision Operating in April, averaged 1,860 mcf per day in June, up 56 mcf per day, 3.13%, from a May average of 1,804 mcf per day, but down 0.92% from a June 2024 average of 1,878 mcf per day. AIX's Kenai Loop averaged 1,689 mcf per day in June, down 64 mcf per day, 3.65%, from a May average 1,753 mcf per day and down 16.3% from a June 2024 average of 2,018 mcf per day. Hilcorp's Trading Bay averaged 809 mcf per day in June, up 178 mcf per day, 28.22%, from a May average of 631 mcf per day and up 22.6% from a June 2024 average of 660 mcf per day. BlueCrest's Hansen averaged 598 mcf per day in June, down 12 mcf per day, 1.89%, from a May average of 609 mcf per day and down 42.47% from a June 2024 average of 1,039 mcf per day. Amaroq's Nicolai Creek averaged 402 mcf per day in June, down 17 mcf per day, 3.97%, from a May average of 418 mcf per day but up 29.54% from a June 2024 average of 310 mcf per day. Hilcorp's Pretty Creek averaged 242 mcf per day in June, down 1,397 mcf per day, 85.24%, from a May average of 1,639 mcf per day; the field was not on production in June of 2024. Hilcorp's Nikolaevsk averaged 219 mcf per day in June, down 3 mcf per day, 1.34%, from a May average of 222 mcf per day and down 25.47% from a June 2024 average of 293 mcf per day. Cook Inlet Energy's West McArthur River averaged 196 mcf per day in June, down 16 mcf per day, 7.52%, from a May average of 212 mcf per day and down 24.6% from a June 2024 average of 260 mcf per day. CIE is a Glacier Oil and Gas company. CIE's Redoubt Shoal averaged 125 mcf per day in June, down 7 mcf per day, 5.52%, from a May average of 132 mcf per day and down 18.28% from a June 2024 average of 153 mcf per day. Cook Inlet natural gas production peaked in 1990 at more than 850,000 mcf per day. --KRISTEN NELSON ______________________________