PE-backed DrillingInfo acquires Oildex

Drillinginfo, which is backed by Genstar Capital, has acquired Denver-based Oildex, the largest oil and gas financial automation software. No financial terms were disclosed. Oildex is a portfolio company of Accel-KKR.UPDATE: Accel-KKR's return on invested capital for Oildex is more than 4x, a source familiar said.

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