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CLMT: a producer of specialty hydrocarbon products in North America. The Company owns plants located in Princeton, Louisiana; Cotton Valley, Louisiana; Shreveport, Louisiana; Karns City, Pennsylvania and Dickinson, Texas and a terminal located in Burnham, Illinois. Calumet operates in two segments: specialty products and fuel products. In its specialty products segment, it processes crude oil and other feedstocks into a variety of lubricating oils, white mineral oils, solvents, petrolatums and waxes. Its specialty products are sold to domestic and international customers who purchase them primarily as raw material components for basic industrial, consumer and automotive goods. In its fuel products segment, it processes crude oil into a variety of fuel and fuel-related products, including gasoline, diesel and jet fuel.

BPT: a grantor trust. The Trust was formed for the purpose of owning and administering an overriding royalty interest (the Royalty Interest). The Royalty Interest is a non-operational interest in minerals. The Royalty Interest entitles the Trust to a royalty on 16.4246% of the lesser of the first 90,000 barrels of the average actual daily net production of crude oil and condensate per quarter from the working interest of BP Exploration (Alaska) Inc. (BP Alaska), as of February 28, 1989, in the Prudhoe Bay oil field located on the North Slope in Alaska, or the average actual daily net production of crude oil and condensate per quarter from that working interest. The Prudhoe Bay field is one of four contiguous North Slope oil fields that are operated by BP Alaska, Prudhoe Bay Unit. Standard Oil and BP Alaska are indirect wholly owned subsidiaries of the BP p.l.c. (BP).

YPF: an integrated oil and gas company. The upstream operations consist of the exploration, development and production of crude oil, natural gas and liquefied petroleum gas (LPG). The downstream operations include the refining, marketing, transportation and distribution of oil and a range of petroleum products, petroleum derivatives, petrochemicals, LPG and bio-fuels. The Company operates in three segments: exploration and production, refining and marketing, and chemicals. As of December 31, 2009, YPF operated more than 70 oil and gas fields in Argentina. As of December 31, 2009, it had proved reserves of approximately 538 million barrels (mmbbl) of oil and 2,672 billion cubic feet (bcf) of gas, representing aggregate reserves of 1,013 million barrels of oil equivalent (mmboe). As of December 31, 2009, the retail distribution for automotive petroleum products consisted of 1,632 YPF-branded service stations.