Post Oak Capital Backs Permian Team, Invests in Haynesville / Latest / By mark Frost Cochran, managing partner at Post Oak Energy Capital, said the private equity firm will continue to focus on the Permian Basin while making opportunistic deals as it recently did in the Haynesville Shale. Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Related