Archrock, Inc.
A Houston-based energy infrastructure company, Archrock owns, installs, and maintains the giant machines that squeeze natural gas so it can flow through pipelines to homes and power plants. It's the largest provider of contract natural gas compression in the United States, serving producers and midstream operators. Its roots reach back to 1954, and it took its current form in 2015 when it was spun off from Exterran Holdings. The name 'Archrock' reflects its role in 'bridging the gap' between a customer's challenge and a solution.
Estimated from filings — the split-adjusted price range over the quarters each manager built the position. A range, not a fill price; 13F reports a quarter-end snapshot, not a trade date.