Maurel & Prom - Sabanero Well in Colombia : Discovery Confirmed

PARIS, September 20, 2010 - Maurel & Prom (operator 100%) announces the success of the
second exploration well (SAB-SE-1) drilled in the Sabanero permit. The
exploration well found 12 API crude oil in the Carbonera C7 formation.

The purpose of this second drilling was to confirm the
productivity of the discovery and the thickness of the reservoir. The
Sabanero SE-1 exploration well has been drilled to 3,241 ft (988 m) (MD) and
found oil in the Carbonera C7 formation, with a net pay of 27 feet (8 m) of
which 15 feet (4.5 m) have been perforated, with a resulting flow rate of 500
bopd compared to 140 bbl produced from the first well before water
breakthrough.

Based on data from the two wells drilled so far and 3D seismic
coverage, the possible extension could have a surface of 40 km2 with an
averaged net pay of 30 feet (9 m).

The exploitation conditions and quality of oil look to be
similar as the ones of Rubiales field (located 50 km southwest).

The recovery rate for heavy oil fields within the llanos basin
is estimated between 10% and 20%.

A third exploration well will be drilled within the existing
licensed area; two more exploration wells will be drilled, one on the top of
the structure, as soon as environmental authorization is obtained.

This document may contain forward-looking statements regarding
the financial position, results, business, and industrial strategy of Maurel
& Prom. By nature, forward-looking statements contain risks and uncertainties
to the extent that they are based on events or circumstances that may or may
not happen in the future. These projections are based on assumptions we
believe to be reasonable, but which may prove to be incorrect and which
depend on a number of risk factors such as, fluctuations in crude oil prices,
changes in exchange rates, uncertainties related to the valuation of our oil
reserves, actual rates of oil production and the related costs, operational
problems, political stability, legislative or regulatory reforms, or even
wars, terrorism or sabotage.

             Maurel & Prom is listed for trading on Euronext Paris -
                      Compartment A - CAC mid 100 Index
             Isin FR0000051070 / Bloomberg MAU.FP / Reuters MAUP.PA

    For more information, visit www.maureletprom.fr

    Communication:
    INFLUENCES
    +33-1-42-72-46-76
    communication@agence-influences.fr

Communication: INFLUENCES, +33-1-42-72-46-76, communication at agence-influences.fr