Base oils (Group II/III)

One of the world's largest oil and gas companies; major US and global sulfur producer as a Claus Process refinery byproduct. Key US refining locations: Baytown, Texas (largest US refinery complex); Baton Rouge, Louisiana; Beaumont, Texas. Also major international refiner (Antwerp, Rotterdam). USGS listed as one of leading US recovered sulfur producers. Also holds 25% of Tengizchevroil (TCO) in Kazakhstan, making it indirectly a significant producer of high-sulfur crude and associated sulfur. Acquired Pioneer Natural Resources 2024 (~$60B), largest US oil deal since Exxon-Mobil merger.

World's largest Group III base oil producer (Yubase brand); a subsidiary of SK Innovation (SK Group, South Korea). Operates the world's largest Group III base oil plant at Ulsan, South Korea with ~2.5 million MT/yr capacity. Yubase Group III is the dominant base oil used in "synthetic" engine oils globally (Mobil 1, Pennzoil Platinum, Shell Helix Ultra source their Group III primarily from Yubase). Formerly known as SK Lubricants, renamed SK Enmove in 2022.

Chevron Corporation (San Ramon CA; NYSE: CVX; market cap ~$290B) is a major natural gas producer with operations across Permian Basin TX/NM (both crude oil and associated gas), US Gulf of Mexico deep water, Australia (Gorgon LNG — 15.6 mtpa capacity, Wheatstone LNG — 8.9 mtpa capacity), and Kazakhstan (Tengiz field, predominantly oil but with associated gas). Chevron's Australian LNG operations at Gorgon and Wheatstone are among the world's largest LNG projects and supply predominantly Asian buyers. Permian Basin associated gas volumes have grown substantially as Chevron has expanded Permian crude production. Chevron's attempted acquisition of Hess Corporation (2024, ~$53B) — which would have added Hess's Guyana offshore and Bakken gas positions — faced regulatory challenge from ExxonMobil and CNOOC over pre-emption rights in the Guyana Stabroek Block.