Midwest United Energy's negotiated natural gas rate with several employers is a market index rate based on the Colorado Interstate Gas index for natural gas that includes a 5-cent adder.

Information in a story on A1 Thursday about the market rate was unclear.

Furthermore, while Shepherd of the Valley Care Center in Casper has negotiated a rate with Midwest, it is not part of the consortium that includes the hospital and school district. A related story on page A1 Thursday incorrectly reported the center's affiliation with the consortium.