Kenai Refinery

Tesoro Alaska Company LLC · Marathon Petroleum Corporation · Kenai, AK

Operating PADD5 IRS refinery no. R-92-AK-0006 jet fuel asphalt propane heavy fuel oil

Aerial view of the site Imagery: USDA, USGS The National Map (public domain)

bpd crude capacity · EIA 2026: 68,000
pipelines it injects into: 0
delivery points reachable: 0
terminals on those points: 0
events on record: 4

Capability

Crude distillation 68,000 bpd operable, 68,000 operating (EIA-820, as of 2026-01-01). Downstream units below, barrels per calendar day.

Conversion — makes gasoline and diesel from heavier oil

Hydrocracking — gas oil

12,800

Upgrading

Catalytic reforming — low pressure	12,800
Vacuum distillation	26,000 sd

Treating — meets sulfur specs

Hydrotreating — diesel	11,500 sd
Hydrotreating — naphtha / reformer feed	13,000 sd

Production capacity

Asphalt road oil · 9,500 Hydrogen mmcfd · 13 Isomerization isopentane isohexane · 5,000 Sulfur short tons day · 25

Crude slate

~90% Alaska crude: Cook Inlet local production (now piped rather than tankered since 2018) plus Alaska North Slope crude delivered by tanker from the Valdez Marine Terminal; imported foreign crude is rare.

Crude in & products out

Direction	Mode	Route	Point / origin	Products	Source
crude in	pipeline	Hilcorp Cook Inlet west-side crude pipeline (to Nikiski) In Oct 2018 Hilcorp completed a $90M pipeline replacing tanker delivery of Cook Inlet crude to Marathon's Nikiski (Kenai) refinery.	Cook Inlet west-side oil fields	crude	source
crude in	marine	Kenai Pipe Line Co. Nikiski marine terminal and dock The Nikiski marine terminal and dock is one of four crude receipt points of Kenai Pipe Line Company named in its 2018 tariff filing. NOAA Coast Pilot 9 lists the wharf for receipt of crude oil, with pipelines to a tank farm of over 916,000 barrels. The refinery is not connected to TAPS. About 90% of its crude was Alaska-sourced in 2021 and crude from outside Alaska was described as relatively infrequent.	Cook Inlet and Alaska North Slope crude (by tanker from Valdez)	crude	source
crude in	pipeline	Swanson River Oil Pipeline The interconnection with the Swanson River Oil Pipeline is one of four crude receipt points of Kenai Pipe Line Company named in its 2018 tariff filing with the Regulatory Commission of Alaska.	Interconnection with Kenai Pipe Line Company at Nikiski	crude	source
crude in	pipeline	Middle Ground Shoals Pipeline The Middle Ground Shoals Pipeline is one of four crude receipt points of Kenai Pipe Line Company named in its 2018 tariff filing. Whether it still delivers is not established.	Delivers into Kenai Pipe Line Company facilities	crude	source
crude in	truck	Kenai Pipe Line Co. crude truck rack A truck rack is one of four crude receipt points of Kenai Pipe Line Company named in its 2018 tariff filing. The origin of the trucked crude is not stated.		crude	source
products out	pipeline	Tesoro Alaska Pipeline Marathon said in April 2025 that it operates a 68-mile common-carrier products pipeline carrying jet fuel, gasoline and diesel to the Port of Anchorage and Anchorage International Airport.	Kenai Refinery	jet fuel gasoline distillate	source
products out	rail	Rail to Fairbanks / North Pole Rail starts at Anchorage, not at the refinery. Marathon said in April 2025 that products reaching Anchorage by pipeline are railed from there to the Interior. Destinations given are terminals at Fairbanks International Airport and North Pole.	Anchorage	jet fuel gasoline distillate	source
products out	truck rack	Tesoro Alaska - Kenai terminal truck rack (IRS T-92-AK-4505) The IRS terminal list shows T-92-AK-4505, Tesoro Alaska - Kenai, at 48775 Kenai Spur Hwy, Kenai. Marathon said in April 2025 that wholesale delivery occurs through its terminals in Kenai, the Port of Alaska and North Pole.	Kenai Refinery	gasoline distillate fuel oil propane asphalt	source
products out	pipeline	Nikiski Terminal (piping from refinery) The Nikiski Terminal is a bulk petroleum terminal which receives fuel products, such as gasoline, jet fuel and diesel fuel, into storage tanks via piping from the Kenai Refinery. (AK DEC public notice, search snippet)	Nikiski	gasoline jet fuel distillate	source
products out	pipeline	Kenai Pipe Line Company A 2012 FERC order records Tesoro's statement that short pipeline spurs carry petroleum products between the refinery and its Nikiski dock.	Refinery to the Nikiski dock		source
products out	marine	Kenai Pipe Line Co. Nikiski Wharf NOAA Coast Pilot 9 lists the wharf for shipment of petroleum products as well as receipt of crude oil. It is a T-head pier owned and operated by Kenai Pipe Line Co. and Tesoro Alaska Co. Where product cargoes go is not established.	Nikiski, Cook Inlet		source

Docks

The docks at this facility and, where a ship agent or port publishes it, the largest vessel each berth takes. Channel conditions change; these figures are a guide, not clearance to sail.

Kenai Pipe Line Co. Nikiski Wharf · crude in, products out

Receipt of crude oil and shipment of petroleum products.
T-head pier 1,500 yards north of the Agrium U.S. Wharf, with a 300-foot face and 1,310 feet of berthing space with dolphins.
42 feet reported alongside. Deck height 35 feet.
Pipelines extend to a tank farm in the rear with capacity over 916,000 barrels.
Owned and operated by Kenai Pipe Line Co. and Tesoro Alaska Co.

Source: NOAA Coast Pilot 9, read 2026-10-11.

Pipeline reach

No tariff origin point is linked to this refinery yet.

Substitutes

No other refinery shares a tariff system with this one in our data.

Events

2025-02 sale
Harvest Alaska (a Hilcorp Energy affiliate) acquired Marathon's mothballed Kenai LNG plant next to the refinery, to secure regional gas supply. Harvest Midstream's January 2026 presentation to the Alaska House Energy Committee confirms the purchase and describes the plant as pipeline-connected to the refinery. source
2021-11 other
Marathon Petroleum put the Kenai refinery on the market for potential sale; no completed transaction found in subsequent reporting. source
2020-12 other
Marathon subsidiary Trans-Foreland Pipeline received FERC approval to convert the mothballed Kenai LNG plant from an export facility to a natural-gas import facility, intended to give the adjacent Kenai refinery lower-cost fuel gas for its crude heaters. source
1995-03 ownership
Tesoro Alaska bought Kenai Pipe Line Company from Chevron. A 2012 FERC order states that all facilities previously owned by Kenai Pipe Line have been owned by Tesoro Alaska since that sale. source

Rates are pipeline line-haul transcribed from published FERC tariffs; every figure cites its tariff and item. Cost to serve (netback) adds origin spot price and destination fees. "Confirmed" links match a tariff delivery point to the facility; "same city" means the point is in the facility's city — plausible, not proof; "per research" means the facility's research profile names the pipeline as an outlet.