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The Vickers Top Buyers & Sellers is a daily report that identifies the five companies the largest insider purchase transactions based on the dollar value of the transactions as well as the five companies the largest insider sales transactions based on the dollar value of the transactions.

Weatherford provides oilfield services and equipment to national, integrated, public, and private oil and gas operators. It operates across multiple upstream markets, including offshore, the rest of the world onshore, and US onshore, where Weatherford has limited exposure. The Middle East, North Africa, and Asia account for over 25% of sales. Weatherford also offers manufacturing, research, and training services. Performance is reported through three segments: drilling and evaluation, well construction and completions, and production and intervention.

Diamondback is a crude oil and natural gas exploration and production firm whose operations represent a pure-play in the US Permian Basin. The company went public in 2012 and has established itself as a top-tier independent producer through disciplined acquisition and operational excellence. The company's most transformational transaction occurred in September 2024 with the completion of its $26 billion merger with Endeavor Energy Resources, which added around 470,000 net acres and doubled Diamondback's total acreage position. Diamondback boasts an enviable position in the Midland sub-basin, with some of the lowest unit costs among its Permian peers.

HF Sinclair Corp., headquartered in Dallas, is an independent energy company that produces and markets light crude products such as gasoline, diesel fuel, jet fuel, renewable diesel, and other specialty products. The company owns and operates refineries located in Kansas, Oklahoma, New Mexico, Wyoming, Washington, and Utah. HF Sinclair provides petroleum products and crude oil transportation, terminaling, storage, and throughput services to its refineries and the petroleum industry and supplies fuel to more than 1,500 branded stations. It also licenses the use of the Sinclair brand at more than 300 additional locations throughout the country. The company employs about 5,200 people and is a component of the S&P 500 index.