Sierra Offshore Exploration News


Shell Buys Stakes in Angolan Offshore Blocks from Chevron

Jan 06, 2026

Shell has agreed to buy stakes in two undeveloped offshore blocks in ultra-deep waters offshore Angola from Chevron, the European energy major said on Tuesday.European oil majors have said they will spend billions in Angola, Sub-Saharan Africa's second-largest crude oil producer after Nigeria…

Harbour Energy Takes Operatorship of Zama Field Offshore Mexico

Dec 31, 2025

U.K.-based oil and gas firm Harbour Energy has been appointed operator of the Zama oil project offshore Mexico.The appointment was agreed by the Zama partners, including Pemex, Grupo Carso and Talos Energy who will have the option to appoint key personnel into Harbour's project team…

Surprise Gas Hit Adds Momentum to ConocoPhillips’ Australian Drilling Ops

Dec 30, 2025

An offshore gas exploration well operated by ConocoPhillips Australia has intersected unexpected gas in the Otway Basin off southeastern Australia, prompting a temporary pause in drilling while partners assess changes to the well design.The Charlemont-1 exploration well…

Europa Oil & Gas Sells Equatorial Guinea Offshore Block Stake to China’s Fuhai

Dec 30, 2025

Europa Oil & Gas has through its associated company Antler Global signed a binding farm-out agreement with China’s Fuhai (Beijing) Energy to sell a 40% interest in the EG-08 production sharing contract offshore Equatorial Guinea.Under the agreement…

Petronas Drills First of Four Wells in Block Offshore Suriname

Dec 29, 2025

Petronas has completed drilling of the Caiman-1 exploration well in Block 52 offshore Suriname, marking the first well in its four-well 2025–2026 drilling campaign in the block.The Caiman-1 well was spudded on July 21, 2025 and safely plugged and abandoned on December 6…

South Korean Firm Buys Into Indonesian Offshore Oil Block

Dec 26, 2025

SK Earthon, the energy resource development unit of SK Innovation, has acquired a 34% stake in the North Ketapang exploration block offshore Indonesia, expanding its upstream presence in Southeast Asia.The stake was acquired from Petronas North Ketapang…

CNOOC Makes Major Oil Discovery in Bohai Sea

Dec 24, 2025

China's state-owned oil and gas firm China National Offshore Oil Corporation (CNOOC) has made a major oil discovery in the Bohai Sea, dubbed Qinhuangdao 29-6, adding over a 100 million tons of oil equivalent in-place.The oil property at the Qinhuangdao 29-6 oil field is medium-heavy crude…

Subsea7 Gets Gulf of America Transport and Installation Job

Dec 23, 2025

Subsea7 has secured a sizeable contract by LLOG Exploration Offshore for the Buckskin South Expansion project in the Gulf of America.The Buckskin field is located approximately 305 kilometres off the coast of Texas, in the United States.The…

Viridien Completes Reimaging of BM-S-2 Multi-Client Survey in Santos Basin

Dec 22, 2025

Viridien has successfully completed the BM-S-2 seismic reimaging project in the southern Santos Basin, delivering a modern, high-fidelity 3D dataset across 8,468 sq km to support growing exploration activity in one of the most strategic, emerging offshore regions of Brazil…

Shearwater Set to Start Multi-Client Survey Offshore Nigeria

Dec 22, 2025

Offshore seismic services firm Shearwater Geoservices has finalized the preparations for the upcoming start of a new multi-client seismic project offshore Nigeria.The 3D survey is backed by significant industry funding and will be executed in…

Harbour Energy Expands to Gulf of America in $3.2B LLOG Acquisition Deal

Dec 22, 2025

Harbour Energy has entered into an agreement to acquire LLOG Exploration Company for $3.2 billion, marking its entry into the deepwater U.S. Gulf of America and strengthening its global offshore portfolio.The deal, which includes $2.7 billion in cash and $0…

SBM Offshore Nets Lease Extensions for Angola FPSOs with ExxonMobil Unit

Dec 18, 2025

SBM Offshore has signed a contract extension related to the lease and operation of floating production, storage and offloading (FPSO) units Mondo and Saxi Batuque with ExxonMobil’s Angolan subsidiary.The extension secures ownership and operations…

ADNOC Lines Up $11B for Offshore Hail and Ghasha Gas Project

Dec 18, 2025

Abu Dhabi National Oil Company (ADNOC) has secured up to $11 billion in structured, non-recourse financing to support development of its Hail and Ghasha offshore gas project, a key part of the UAE’s strategy to expand domestic gas supply and exports…

TotalEnergies Sells Stake in Malaysia’s Block to Thailand’s PTTEP

Dec 16, 2025

TotalEnergies has closed an agreement to divest to PTTEP an indirect interest of 9.998% in block SK408 in Malaysia.TotalEnergies will keep a 30.002% interest in block SK408 and the operatorship. The block is a major gas development, contributing to Malaysia’s energy security…

Odyssey Marine Exploration Request for Offshore Mineral Lease Sale Advances

Dec 15, 2025

Odyssey Marine Exploration, Inc., a U.S.-based ocean exploration and marine resource development leader, received news that the Bureau of Ocean Energy Management’s (BOEM), a department of the U.S. Department of Interior (DOI), has initiated…

Current News

QatarEnergy Receives Offshore Exploration License From Libya

Libya Awards First Oil Blocks Since 2007 to Chevron, Eni

TGS Embarks on Multi-Client 2D Survey off Angola

Orbital Marine Grows UK and Canada Tidal Energy Orderbook to 32MW

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