Davis Polk & Wardwell, which represents Baker Hughes Inc. in its pending combination with General Electric’s oil and gas business, is also advising the Houston oil field services company in forming a new pressure pumping venture with CSL Capital Management and West Street Energy Partners (WSEP).

CSL, a private equity firm in Houston, turned to Kirkland & Ellis, while the Merchant Banking Division of Goldman Sachs, which manages WSEP, is using Fried, Frank, Harris, Shriver & Jacobson.