RSI Chemicals, Inc. (“RSI”)

RSI is a Hempstead, Texas-based vertically integrated chemical services provider focused on manufacturing and supplying proprietary and custom solutions to its customers across the major producing basins. RSI was formed in 1989 and serves its upstream and midstream customers with over 270 employees working from 20 locations.

Post Oak Energy Capital, LP (“Post OAk”)

Post Oak is a Houston-based private equity firm primarily focused on making domestic investments in the upstream, midstream and oilfield services sectors of the energy industry.

IMPERATIVE CHEMICAL PARTNERS, Inc. (“IMPERATIVE”)

Imperative is a Midland, Texas-based provider of production and completion chemical, acid stimulation, and capillary injection solutions for upstream and midstream oil, gas, and water customers. Imperative has over 550 employees and 32 locations serving customers across 12 states.

OEP Capital Advisors (“OEP”)

OEP is a middle market private equity firm focused on the industrial, healthcare and technology sectors in North America and Europe. OEP is a trusted partner with a differentiated investment process, a broad and senior team, and an established track record generating long-term value for its partners.

PPHB, LP (“PPHB”)

PPHB is an independent investment banking firm providing financial advisory services to middle market companies that offer products and services to the following end markets: