Westlake Chemical Partners LP WLKP

What this company does

Westlake Chemical Partners LP's assets, held through OpCo, comprise three ethylene production facilities that primarily convert ethane into ethylene, with an aggregate annual capacity of approximately 3.7 billion pounds, and a 200-mile ethylene pipeline. OpCo generates revenue primarily by selling ethylene to Westlake and other customers, as well as through the sale of co-products of ethylene production, including propylene, crude butadiene, pyrolysis gasoline and hydrogen. As of December 31, 2025, 155 employees of Westlake were seconded to OpCo. Its business and operations are conducted through OpCo, whose general partner it owns, giving it control over all of OpCo's assets and operations. Its assets and operations are organized into a single reportable segment and are located and conducted entirely in the United States. Westlake Chemical Partners LP is a Delaware limited partnership formed by Westlake in March 2014 to operate, acquire and develop ethylene production facilities and related assets.

Written from the business description in Westlake Chemical Partners LP's annual report to the U.S. Securities and Exchange Commission, filed 4 March 2026. Every sentence was checked against that document before publication.