News Release
July 17, 2000

DUKE ENERGY FIELD SERVICES EXPANDS NATURAL GAS PLANT, REDUCES PROCESSING CONSTRAINTS FOR AREA PRODUCERS

DENVER -- Duke Energy Field Services, LLC (DEFS), today announced it will more than double processing capacity at its Roggen natural gas processing plant northeast of Denver from 25 million cubic feet per day (MMcf/d) to 55 MMcf/d. The upgrade will increase producers' natural gas production capabilities and ease the area's processing constraints.

This expansion will provide the capacity needed to handle rapidly rising natural gas supplies resulting from increased drilling activity and technology improvements to extract existing proven natural gas reserves in the Denver-Julesburg (D-J) Basin of Colorado. DEFS expects that daily gas volumes delivered to the Roggen plant will reach nearly 55 MMcf/d within the next year. Natural gas liquids (NGLs) production from the plant is expected to increase from 2,100 barrels per day to more than 4,300 barrels per day.

"This project represents our second recent capacity expansion in the D-J Basin," said Michael J. Bradley, senior vice president of DEFS’ Northern division. "In July 1999, we reactivated 25 MMcf/d of capacity at our Roggen Plant -- incremental capacity that is now fully utilized."

Engineering design and equipment procurement for the Roggen plant expansion are underway. Construction will begin in the third quarter with a December plant start-up anticipated.

"The Roggen plant expansion is great news for all D-J Basin producers," said Jay Decker, president of Denver-based Patina Oil & Gas Corporation (NYSE:POG). "Patina has identified a significant number of low-risk, high rate-of-return development projects; however, many of these projects have been delayed due to current processing capacity constraints. The Roggen expansion will allow us to increase our development activity and continue growth in our production levels."

DEFS said incremental natural gas liquids produced at the Roggen plant will be delivered into Phillips Pipe Line Company’s natural gas liquids line that runs from the Powder River Basin of Wyoming to the Texas Panhandle.

DEFS, headquartered in Denver, Colo., is a midstream energy company that gathers, processes, transports, markets and stores natural gas and produces, transports and markets natural gas liquids (NGLs). The company is one of the nation's largest natural gas gatherers, the largest producer of NGLs and one of the largest NGL marketers. DEFS operates in 11 states and across five of the largest natural gas producing regions in North America. The company owns and operates 71 plants and 57,000 miles of pipeline, and its operating territory extends from western Canada to the Gulf Coast. DEFS also owns the general partner of TEPPCO Partners, L.P., a publicly traded master limited partnership. Duke Energy Field Services, LLC was formed by combining the Duke Energy and Phillips Petroleum natural gas gathering and processing businesses. Duke Energy, a diversified multi-national energy company, owns approximately 70 percent of the joint venture and Phillips Petroleum owns about 30 percent.

Contact: Phyllis Hammond
Phone: 303/605-1606
24 Hour Phone: 704/382-8333
Email: media_relations@duke-energy.com