http://www.worldoil.com WorldOil Apache completes midcontinent asset sales https://www.worldoil.com/news/2019/7/19/apache-completes-midcontinent-asset-sales The asset sales reflect the company’s exit from the Western Anadarko Basin and the previously announced exit from the SCOOP/STACK play. Chisholm, Gastar combine to create the leading STACK EandP company https://www.worldoil.com/news/2019/6/19/chisholm-gastar-combine-to-create-the-leading-stack-ep-company Chisholm Oil and Gas, LLC, of Tulsa, Okla., and Gastar Exploration LLC of Houston, Texas. have announced that they have entered into definitive agreements to effect a merger between the two companies. Optimizing STACK diversion strategy using pressure-based fracture maps https://www.worldoil.com/magazine/2019/march-2019/features/optimizing-stack-diversion-strategy-using-pressure-based-fracture-maps Fracture mapping enables operators to determine the effectiveness of different diversion techniques to control fracture growth and minimize inter-well communications. Gulfport board faulted, share buybacks sought by investor https://www.worldoil.com/news/2019/1/17/gulfport-board-faulted-share-buybacks-sought-by-investor One of the largest investors in Gulfport Energy Corp. is urging changes at the natural gas and oil company, saying its board lacks the experience needed to correct its lagging performance. After success of first Osage formation test well, Jericho continues drilling momentum https://www.worldoil.com/news/2018/8/22/after-success-of-first-osage-formation-test-well-jericho-continues-drilling-momentum Jericho Oil Corporation announces that its Oklahoma STACK Joint Venture (JV) will commence this week with the drilling of its second Osage formation well, the Trebuchet 21-23N-10W #1H, within its northern STACK acreage position further delineating the nearly 16,000 net STACK acres.