This collection contains a written transcript (1986) of an interview with Marion Moore Fidlar (1909-1991), the former President and Chairman of Mountain Fuel Supply Company.

This collection contains the written transcript of an interview with Bernard Kastler on October 14, 1986 conducted by Arnold Irving. The interview is a discussion about Kastler's management decisions, situations, and impressions while at Mountain Fuel Supply Company.

The Mountain Fuel Supply Company audio-visual collection (1968-1979) consists of films promoting the use of natural gas and documenting the production and transmission of natural gas and sound recordings of speeches and interviews relating to natural gas production. The collection also contains some employee training films. Mountain Fuel Supply was an oil and gas energy company based in Salt Lake City, Utah. The company was reoragnized in 1984 to form Questar Corporation.