diversified energy co said tuesday that it has partnered with oaktree capital management to acquire certain upstream assets and related facilities in east texas the us gas producer said it will obtain a 525 working interest in the assets for contributing 50 of the purchase price or 50 million our enlarged regional footprint complements our portfolio of highquality assets and provides additional scale from which we can derive operational synergies as we optimize asset performance and the associated costs chief executive rusty hutson jr said shares in diversified energy at 0810 gmt were up 170 pence or 15 at 11550 pence