Mr Koeniger has over 33 years of land leasing and administration experience in the energy business in Denver, Colorado. He served as a senior landman for the Bill Barrett Corporation since 2003.

During that time, he was responsible for all land administration activities in the Big Horn and Wind River basins and the tri-state area of Colorado, Kansas and Nebraska.

Prior to that, Mr Koeniger was the district landman with Barrett Resources and Williams Production RMT. He has spent approximately 19 years with several oil and gas companies in the Denver area managing land administration activities in Colorado, Wyoming, North Dakota, Utah and New Mexico.

Dominic Bazile, executive vice president and COO, said: Russ is a very experienced landman who has numerous contacts and extensive knowledge of many oil and gas basins in the Rocky Mountain region.