Article Nov. 26, 2018


Production and handling

Usan began producing in February 2012 and is expected to reach a peak production of approximately 180KBD. Estimated proven and probable reserves are more than 500 million barrels.

Nigerian National Petroleum Corporation (NNPC) is the concession holder. Esso E&P Nigeria (Offshore East) Ltd. operates OML 138 (OPL 222) with a 30% interest. Its partners are Chevron Petroleum Nigeria Ltd. (30%), Total E&P Nigeria Ltd. (30%) and Nexen Petroleum Nigeria Ltd. (20%).

Load Port Data

Usan is loaded from the Usan FPSO (floating production, storage and offloading vessel). It is about 60 miles south off the coast of Nigeria in the Gulf of Guinea.


  • Gravity 29.0
  • Sulfur 0.27%
  • Load port Usan FPSO



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