Petro Welt Technologies AG engages in the provision of oil and gas field services. It operates through the following segments: Well Services and Drilling, Sidetracking Integrated project management (IPM), and Proppant Production. The Well Services segment encompasses hydraulic and multi stage fracturing, and remedial cementing. The Drilling, Sidetracking, IPM segment is operated by OOO KAT-oil Drilling and OOO KATOBNEFT. The Proppant Production segment is operated by OOO Wellpro. The company was founded by Volkmar SchÃ¼tze and Hans Joachim Mundhenk in 1991 and is headquartered in Vienna, Austria.