License
 C 137 Block is located in the western part of Libyan offshore zone, extending up to about 100 km from the coast, along the Tunisian border. The license originates from a first contract awarded to AQUITAINE LIBYE in 1968. After various relinquishments, it is now divided into 2 zones, North and South, totaling 3184 km2  . It is ruled under the amended EPSA 74, ratified by Libyan authorities on 12th April 1997 and valid until 11th April 2017 (plus 5 years in case of production extension).

Participating Interest
After the Final Investment Decision (FID) the Participating Interest are as follows:
 NATIONAL OIL CORPORATION 50.0 %
 TOTAL 37.5 %
 WINTERSHALL 12.5 %
 
Operator
 For the exploration and appraisal phase, the operatorship is insured by TEP_Libye.
 For the development phase the operatorship will be insured through an Operator’s Committee by Mabruk Oil Operations, the Operating Company for the TOTAL assets in Libya.
Discovery and appraisal
- From 1968 to date 17 wells have been drilled on block 137 N & S out of which 7 did encounter hydrocarbons ;
- The “B” discovery well (B1a-137) has been drilled in 1975 and was oil and gas bearing in lower Eocene.
- A first appraisal well (B2-137) has been drilled in 1983 but was water bearing.
- Following a 3D seismic acquisition carried out in 1997/1998, a second appraisal well (B3-137) has been drilled late 1998, and was able to secure the water oil contact and to test the oil in the main reservoir.