Here are some HF frequencies reported recently for various oil and gas companies.
3336.0 Sonatrach - Algeria ALE/LSB
4190.0 Western/Southern Africa Oil Industry USB
4390.0 Congo Brazzaville Offshore Oil USB
5036.0 Sonatrach - Algeria ALE/LSB
5410.0 Sonatrach - Algeria ALE/LSB
5418.0 Sonatrach - Algeria ALE/LSB
5500.0 Nigerian Oil NNPC ALE/USB
5807.0 Nigerian Oil NNPC ALE/USB
6500.0 Nigerian Oil NNPC ALE/USB
6790.0 Sonatrach - Algeria ALE/LSB
6981.0 Sonatrach - Algeria ALE/LSB
7739.0 Sonatrach - Algeria ALE/LSB
7759.0 Nigerian Oil NNPC ALE/USB
7818.0 Sonatrach - Algeria ALE/LSB
7969.0 Sonatrach - Algeria ALE/USB
7980.0 Nigerian Oil NNPC ALE/USB
8086.0 Nigerian Oil NNPC ALE/USB
9315.0 Sonatrach - Algeria ALE/LSB
10211.0 Sonatrach - Algeria ALE/LSB
10244.0 Sonatrach - Algeria ALE/USB
10275.0 Sonatrach - Algeria ALE/LSB
10285.0 Sonatrach - Algeria ALE/LSB
11466.0 Sonatrach - Algeria ALE/LSB
