HF Sinclair Corp

Our midstream operations are composed of logistics assets consisting of petroleum product and crude oil pipelines, terminals, tankage, and loading rack facilities that principally support our refining operations, as well as operations for other third-party refineries, in the Mid-Continent, Southwest and Rocky Mountains geographic regions of the United States. Additionally, we own a 50% ownership interest in each of Osage Pipe Line Company, LLC, the owner of a pipeline running from Cushing, Oklahoma to El Dorado, Kansas (the “Osage Pipeline”), and Cushing Connect Pipeline & Terminal LLC (“Cushing Connect”), the owner of a crude oil storage terminal in Cushing, Oklahoma and a pipeline that runs from Cushing, Oklahoma to our Tulsa Refineries; a 26.08% ownership interest in Saddle Butte Pipeline III, LLC, the owner of a pipeline from the Powder River Basin to Casper, Wyoming (the “Saddle Butte Pipeline”); and a 49.995% ownership interest in Pioneer Investments Corp., the owner of a pipeline from Sinclair, Wyoming to the North Salt Lake City, Utah Terminal (the “Pioneer Pipeline”).

Our midstream operations generate revenues by charging tariffs for transporting petroleum products and crude oil through their pipelines, by charging fees for terminalling refined products and other hydrocarbons and by storing and providing other services at their storage tanks and terminals. Our midstream operations do not take ownership of products that they transport, terminal, store or refine; therefore, they are not directly exposed to changes in commodity prices.

As of December 31, 2025, our midstream assets included:

Pipelines

•approximately 660 miles of refined product pipelines, including 340 miles of leased pipelines, used to transport gasoline, diesel and jet fuel principally from our Navajo Refineries in New Mexico to our customers in the metropolitan and rural areas of Texas, New Mexico, Arizona, Colorado, Utah and northern Mexico;

•one 205-mile pipeline that transports refined product from our Parco Refinery in Wyoming to our customers in Colorado;

•one 114-mile bi-directional products pipeline that transports finished and intermediate products between our Parco and Casper refineries in Wyoming;

•approximately 510 miles of refined product pipelines used to transport refined products from a refinery in Big Spring, Texas to other destinations in Texas;

•two 65-mile pipelines that transport intermediate feedstocks and crude oil from our crude oil distillation and vacuum facilities at our Lovington facility to our petroleum refinery facilities in Artesia, New Mexico;

•one 65-mile intermediate pipeline that is used for the shipment of crude oil from the gathering systems in Barnsdall and Beeson, New Mexico to our Navajo Refineries;

•the SLC Pipeline, a 95-mile intrastate crude oil pipeline system that transports crude oil into the Salt Lake City, Utah area from the Utah terminus of the Frontier Pipeline, as well as crude oil flowing from Wyoming and Utah via the Marathon Wamsutter system;

•the Frontier Pipeline, a 289-mile crude oil pipeline running from Casper, Wyoming to Frontier Station, Utah through a connection to the SLC Pipeline;

•approximately 990 miles of crude oil trunk, gathering and connection pipelines located in west Texas and New Mexico that primarily deliver crude oil to our Navajo Refineries;

•approximately 535 miles of crude oil trunk, gathering and connection pipelines in Wyoming that primarily deliver crude oil to our Parco and Casper refineries;

•approximately 10 miles of refined product pipelines that support our Woods Cross Refinery located near Salt Lake City, Utah;

•five intermediate product and gas pipelines between our Tulsa East and Tulsa West facilities;

•feedstock receiving assets located at our Cheyenne facility;

•the UNEV Pipeline, which is a 427-mile, 12-inch refined products pipeline running from Woods Cross, Utah to Las Vegas, Nevada and Cedar City, Utah;

•a 50% interest in the Osage Pipeline, a 135-mile pipeline that transports crude oil from Cushing, Oklahoma to our El Dorado Refinery and also has a connection to the Jayhawk pipeline that further connects to a refinery in McPherson, Kansas;

•a 50% interest in the Cushing Connect Pipeline, a 50-mile crude oil pipeline running from Cushing, Oklahoma to our Tulsa Refineries;

•a 49.995% interest in the Pioneer Pipeline, a 312-mile refined product pipeline running from Sinclair Station in Wyoming to the terminal in North Salt Lake City, Utah. Through connections, this pipeline is also able to deliver refined products to the UNEV Pipeline; and

•a 26.08% interest in the Saddle Butte Pipeline, a crude oil pipeline that collects crude oil from the Powder River Basin in Wyoming and primarily delivers into our crude oil pipeline system that supplies our Parco and Casper refineries.

Refined Product Terminals and Refinery Tankage

•two refined product terminals located in Orla, Texas and Moriarty, New Mexico, with an aggregate capacity of approximately 200,000 barrels, that are integrated with our refined product pipeline system that serves our Navajo Refineries;

•two refined product terminals, located in Wichita Falls and Abilene, Texas, and one tank farm in Orla, Texas with an aggregate capacity of approximately 560,000 barrels, that are integrated with our refined product pipelines that serve shipments originating in Big Spring, Texas;

•a refined product terminal in Catoosa, Oklahoma, with a capacity of approximately 60,000 barrels that stores specialty lubricant products and is utilized by our Tulsa Refineries;

•a refined product loading rack facility at each of our El Dorado, Tulsa, Navajo and Woods Cross refineries, heavy product/asphalt loading rack facilities at our Tulsa East and Lovington facilities, LPG loading rack facilities at our El Dorado Refinery and Tulsa West facility and base oil loading racks at our Tulsa West facility;

•refined product storage capacity at our Parco and Casper refineries as well as at seven refined product terminals in Colorado, Idaho, Wyoming and Washington serving our Parco, Casper and Woods Cross refineries with a capacity of approximately 2,510,000 barrels;

•one refined product terminal in Kansas City, Missouri having an aggregate storage capacity of approximately 340,000 barrels;

•on-site crude oil tankage at our Tulsa, Navajo and Woods Cross refineries and Cheyenne facility having an aggregate storage capacity of approximately 1,440,000 barrels;

•on-site refined and intermediate product tankage at our El Dorado, Tulsa, Navajo and Woods Cross refineries and Cheyenne facility having an aggregate storage capacity of approximately 8,250,000 barrels;

•eleven crude oil tanks adjacent to our El Dorado Refinery with a capacity of approximately 1,040,000 barrels that primarily serve our El Dorado Refinery;

•crude oil tankage at five crude oil terminals with a capacity of approximately 1,790,000 barrels that primarily serve our Parco and Casper refineries;

•crude oil tankage with an aggregate storage capacity of approximately 510,000 barrels that primarily serve our Navajo Refineries;

•SLC Pipeline’s and Frontier Pipeline’s tankage with an aggregate capacity of approximately 380,000 barrels;

•the UNEV Pipeline’s product terminals near Cedar City, Utah and Las Vegas, Nevada with an aggregate capacity of approximately 650,000 barrels;

•a 50% interest in the Cushing Connect terminal with a capacity of approximately 1,500,000 barrels of crude oil storage in Cushing, Oklahoma;

•a 26.08% interest in Saddle Butte Pipeline III, LLC, which has approximately 160,000 barrels of crude oil storage in Wyoming; and

•a 49.995% ownership interest in Pioneer Investments Corp., which has approximately 655,000 barrels of refined product storage in Utah.