Hollyfrontier Corp
Our refinery operations serve the Mid-Continent, Southwest and Rocky Mountain
regions of the United States. We own and operate five complex refineries having
a combined crude oil processing capacity of 457,000 barrels per stream day.
Each of our refineries has the complexity to convert discounted, heavy and sour
crude oils into a high percentage of gasoline, diesel and other high-value refined
products.
Our principal customers for gasoline include other refiners, convenience store
chains, independent marketers and retailers. Diesel fuel is sold to other refiners,
truck stop chains, wholesalers and railroads. Jet fuel is sold for commercial
airline use. Specialty lubricant products are sold in both commercial and specialty
markets. LPG's are sold to LPG wholesalers and LPG retailers. We produce and
purchase asphalt products that are sold to governmental entities, paving contractors
or manufacturers. Asphalt is also blended into fuel oil and is either sold locally
or is shipped to the Gulf Coast.
The El Dorado Refinery is located on 1,100 acres south of El Dorado, Kansas
and is a fully integrated refinery. The principal processing units at the El
Dorado Refinery consist of crude and vacuum distillation; hydrodesulfurization
of naphtha, kerosene, diesel, and gas oil streams; isomerization; catalytic
reforming; aromatics recovery; catalytic cracking; alkylation; delayed coking;
hydrogen production; and sulfur recovery. Refining operations began at the site
in 1917 and the operating units now present include both newly constructed units
and older units that have been upgraded over the years.
The Tulsa West facility is located on a 750-acre site in Tulsa, Oklahoma situated
along the Arkansas River. The principal processing units at the Tulsa West facility
consist of crude and vacuum distillation (with light ends recovery), naphtha
hydrodesulfurization, propane de-asphalting, lubes extraction, MEK dewaxing,
delayed coker and butane splitter units. Most of the operating units at the
facility currently in service were built in the late 1950s and early 1960s.
The refinery was reconfigured to emphasize specialty lubricant production in
the early 1990s.
The Tulsa East facility is located on a 466-acre site also in Tulsa, Oklahoma
situated along the Arkansas River. The principal process units at the Tulsa
East facility consist of crude and vacuum distillation, naphtha hydrodesulfurization,
FCC, isomerization, catalytic reforming, alkylation, scanfiner, diesel hydrodesulfurization
and sulfur units.
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