Energen: Other News Release FOR RELEASE: Analyst Contact: Julie S. Ryland, (205) 326-8421 MONDAY, JUNE 9, 1997 Media Contact: Susan C. Delenne, (205) 326-9212 Taurus Exploration Acquires Working Interest in Pinnacle Reef Joint Venture BIRMINGHAM, Ala. ÄÄ Energen Corporation (NYSE: EGN) announced today that its oil and gas exploration and production subsidiary, Taurus Exploration Inc., has joined the Sonat Exploration/United Meridian Corporation joint venture in the Cotton Valley Pinnacle Reef trend by acquiring a 9 percent interest in the joint venture's future exploration activities from Sonat Exploration for $16 million. The transaction closed Monday, June 9. Drilling is under way on the joint venture's first well, the Ryon No. 1. This is the first well to be drilled in the Tri-Cities Area in Henderson County; if successful, the Ryon No. 1 will extend Cotton Valley Pinnacle Reef trend gas production some 45 miles to the northeast of current drilling activity. Located in the east Texas salt basin, this trend presently is the most active, high-potential onshore exploratory play in the continental United States. Taurus's new joint venture relationship spans a leasehold containing 195,000 gross acres in Henderson County and in Van Zandt, Wood, and Smith counties to the northeast and in Anderson County to the southeast. Sonat Exploration is the operator for drilling and development of the venture's acreage as well as the majority interest owner at 59 percent. Other participants are United Meridian Corporation with 30 percent and MB Exploration with 2 percent. The joint venture's lease acquisition has been based on the presence of reef-like seismic anomalies on available two-dimensional (2-D) seismic lines. In all prospective areas, three-dimensional (3-D) seismic surveys will be obtained to verify and define the existence of drillable exploratory Pinnacle Reef prospects. The joint venture will have completed 3-D seismic acquisition and data processing on about 70 percent of its leasehold by the end of calendar 1997, with 3-D seismic data available on the remaining acreage in 1998. "The Cotton Valley pinnacle reef trend is arguably the most exciting onshore exploratory gas play in the United States in recent memory," said James T. McManus, president of Taurus. "If the Ryon No. 1 is successful, an important new play in the northern trend would open up. "We are very pleased and excited to be entering this high-profile, high-impact play which represents one of the most successful uses of onshore 3-D seismic." "This exploratory opportunity comes at a most opportune time in the implementation of Energen's aggressive, five-year, diversified growth strategy," said Mike Warren, Energen's chief executive officer. "With the addition of approximately 330 Bcf of long-lived, predominantly proved developed producing reserves through two large acquisitions over the last 10 months, we had announced plans to focus on higher return exploration activities to promote the proper mix of acquisition, development and exploratory activities we want in order to realize our target growth objectives. "Combined with the previously announced increase in Taurus's interest position in United Meridian Corporation's Gulf of Mexico exploration program, this pinnacle reef investment clearly emphasizes our commitment to Energen's growth strategy for Taurus and our ability to effectively manage its implementation," Warren said. "We also are pleased with this investment because it adds yet another dimension to our existing relationships with both Sonat Exploration and its parent company, Sonat Inc., as well as with United Meridian Corporation," he added. Energen's five-year strategic plan, designed to dramatically grow its oil and gas exploration and production subsidiary, calls for Taurus to invest between fiscal 1996 and fiscal 2000 more than $400 million in the acquisition of producing properties with development potential and more than $100 million in exploration and development. In the plans first 18 months of plan implementation, Taurus has invested approximately $200 million in producing properties with development potential, $10 million in associated development, and $26 million in exploration and related development, resulting in proved reserve additions of approximately 415 Bcf equivalent (Bcfe). Dramatic increases in oil and gas production have helped lead Taurus's net income to record levels. Energen Corporation is a diversified energy company with headquarters in Birmingham, Alabama. In addition to oil and gas exploration and production activities, Energen also distributes natural gas to more than 460,000 customers in central and north Alabama through its utility, Alabama Gas Corporation (Alagasco). END