Aug 2021: Expro has completed a P&A contract for Petronas on 15 wells in the Chinguetti Field located in Deep Water Block 4 of PSC B, 80 kms west of the coastline. Discovered in 2001, Chinguetti, the first commercial oil find in the country, was brought on stream in 2006 via a leased FPSO.
Aug 2020: Total has contracted Shearwater GeoServices to acquire and process 3D seismic data over two offshore blocks C15 and C31.
Apr 2020: BP has declared force majeure on its Tortue LNG project with Golar LNG. It will not be ready to receive the floating unit in 2022 as a result of the COVID-19 pandemic. The lease and operate agreement was signed in February 2019.
Dec 2019: BP has confirmed significant gas resources offshore Mauritania (and Senegal) that could lead to new offshore developments. It sanctioned the Greater Tortue Ahmeyim Phase 1 in December 2018 but successful results at Yakaar-2 and Orca-1 could lead to a new LNG hub exploiting Yakaar-Teranga (Senegal) and Bir Allah/Orca in southern Mauritania.
Oct 2019: Kosmos announced that the Orca-1 exploration well has made a major gas discovery in the BirAllah area. The well, in 2,510m of water, targeted an untested Albian play and also found Cenomanian gas in a down-structure position relative to the Marsouin-1 discovery well. Partners include BP (operator) and SMHPM.
Dec 2018: BP (operator, 62% in Mauritania) and Kosmos (28%) will develop Greater Tortue Ahmeyim gas field using FLNG to produce 2.5 mm tonnes of LNG per year. The field is also located off Senegal. First gas is expected in 2022. Societe Mauritanienne Des Hydrocarbures et de Patrimoine Minier holds 10%.
Dec 2018: The Ministry of Petroleum, Energy, and Mines have awarded Total two new deepwater contracts for Blocks C15 and C31. Total will be operator with 90% alongside the Société Mauritanienne des Hydrocarbures et de Patrimoine Minier (SMHPM) (10%).
Jul 2018: Shell signed two PSCs with the Mauritanian government for the exploration of hydrocarbons in offshore blocks C-10 and C-19. Société Mauritanienne des Hydrocarbures et de Patrimoine Minier, the national oil company of Mauritania, holds a 10% interest.
Feb 2018: Kosmos confirmed that the governments of Senegal and Mauritania have signed an Inter-Governmental Cooperation Agreement (ICA) enabling the development of the cross-border Tortue gas field (50:50 split). An FID for the Greater Tortue project is expected at the end of 2018 with first gas for conversion to LNG in 2021.
Nov 2017: Production continues to fall from the Chinguetti oil field after all wells except for Banda Gas-2, were shut-in due to loss of gas lift. Interventions allowed wells to be re-opened on October 2017 and Petronas (operator) hopes production will stabilize above 2,500 bbls per day for storage on the Berge Helene FPSO.
Jun 2016: Chariot Oil & Gas elected not to enter the First Renewal Phase of the C-19 offshore licence. Chariot acquired 3,500 sq kms of 3D seismic, reprocessed legacy 2D seismic and completed seabed coring in the block but was unable to find a farm-out partner to proceed with drilling.
Mar 2016: Kosmos (operator, 90%) with SMHPM (10%) announced the Ahmeyim-2 appraisal well has delineated the Ahmeyim and Guembeul gas discoveries off Mauritania and Senegal. Downdip of the Tortue-1 well in 2,800m of water, pressure communication has been confirmed between Tortue, Guembeul and Ahmeyim. The discovery is a large, simple gas field with over 500 bcm of reserves.
Mar 2016: Oil production from the offshore Chinguetti field will cease. Output has declined steadily and the low oil price has led to negative cash flow. The partners will begin abandonment operations in 2017.
Nov 2015: Kosmos announced that the Marsouin-1 well in the northern part of Block C-8 is a gas discovery encountering at least 70m of net gas pay in Cenomanian reservoirs. Marsouin is 60kms north of the Ahmeyim discovery (formerly Tortue) drilled in April in 2,390m of water.
Apr 2015: Kosmos Energy (operator, 90%) with SMHPM (10%) announced that the Tortue-1 well in Block C-8 in 2,700m of water has made a gas discovery in the Lower Cenomanian objective. An appraisal program is planned along with additional exploration wells in the Greater Tortue Complex which extends into Senegal. Chevron has a 30% option.
Feb 2015: Chevron has agreed to acquire a 30% non-operated interest in offshore Blocks C8, C12 and C13 from Kosmos in water depths ranging from 1,600 m to 3,000m. Kosmos retains a 60% interest and remains the operator. SMHPM, Mauritania’s NOC has 10%.
Apr 2014: Tullow has announced that the Tapendar-1 well in the C-10 licence is being plugged and abandoned. Tapendar is the second exploration well in its Mauritania campaign. The Stena DrillMax drillship will leave the country and data from the wells will be integrated into seismic. Tullow is operator (59.10%), with Premier (6.23%), Kufpec (11.12%), Petronas (13.5%) and SMHPM (10%).
Feb 2014: Tullow Oil said the Fregate-1 well was not a commercial find, but had encountered 30m of gas, condensate and oil. The company, attempting optimism, reports that it has opened up a new oil area, deeper than current gas fields off the coast of Mauritania.
Mar 2013: Tullow will start a frontier drilling campaign targeting deeper plays in the Mauritanian basin. Three of 4 wells will be drilled by the West Leo rig, now operating for Tullow off Ghana. Tullow was assigned the C-10 license, over the former A and B PSCs, in 2011, and farmed into C-6 and C-7 blocks. The areas contain the Banda, Tevet, and Tiof oil and gas discoveries and the partners have declared the Banda field commercial, hoping to use its gas to supply a new power station.