We defy you to name an oil and gas producer that’s been on the buying side of more $1-billion-plus M&A than Permian pure play Diamondback Energy, which announced February 18 that it had agreed to purchase a chunk of Midland Basin assets from Double Eagle IV, one of the Permian’s largest privately held producers, for just under $4.1 billion. You’d be equally hard-pressed to find a team that’s assembled and flipped more Permian acreage and production than the folks at Double Eagle. In today’s RBN blog, we discuss the newly announced Diamondback/Double Eagle IV deal and what it gives Diamondback, the fourth-largest producer in the Permian after ExxonMobil, Chevron and Occidental Petroleum.