1970's
1970
- May 1970, Oliver-Mercer had 1,500 consumers with 1,376 miles of line energized.
1972
- The largest Oliver-Mercer account in 1972 was the Glenharold Mine, Western Division of Consolidation Coal Company in Stanton.
- The co-op’s 25th-anniversary annual meeting was held in June 1972, with 400 people attending.
1973
- January 1973, the new 2,500-KVA Hazen substation was energized. It is located four miles north of Hazen.
- First-ever evening annual meeting was held in June 1973. There was a turnout of about 460 people.
1975
 |
-
Construction began on the new headquarters building for Oliver-Mercer in May 1975.
- Construction was completed and moving started in January 1976.
1978
- At 7 a.m., on Oct. 5, 1978, KHOL radio station started broadcasting over the air. Oliver-Mercer supplies electricity to the station.
- November 1978, the total of consumers was 2,571, miles of line was 1,554 and average farm KWH usage for a month was 1,345.
