Emerald Energy
Corporate brand
UnclaimedEmerald Energy is a United Kingdom-based oil exploration and production company that became a subsidiary of China's Sinochem in 2009.
Last updated August 26, 2026
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Overview
Emerald Energy plc is an oil exploration and production company headquartered in London and registered offshore in the Isle of Man. The company focuses on finding, developing, and producing hydrocarbons, with its documented operating interests concentrated in Colombia and Syria. It was established in 1996 and initially operated as a publicly traded exploration business on the London Stock Exchange. During its period as an independent listed company, Emerald Energy developed a portfolio of exploration and production contracts covering several Colombian basins and later expanded outside Colombia into Syria. The company's first major opportunity came in 1996 through the Matambo field in Colombia. Drilling began at the Gigante area of the Matambo field by 1998. Emerald subsequently broadened its Colombian activities to Campo Rico in 2002 and Fortuna in 2003. Its Colombian portfolio included interests in the Upper Magdalena Valley, Llanos Basin, Middle Magdalena Valley, Putumayo Basin, and Caguan Basin. These interests included both producing assets and exploration acreage, with the Fortuna contract carrying a 90% working interest for Emerald according to the historical description of its operations. Emerald entered Syria in 2003, representing its first documented move beyond Colombia. Through its wholly owned subsidiary SNG Overseas Ltd, the company held a 50% working interest in Syrian Block 26, with the remaining interest held by Gulfsands Petroleum Syria Ltd. The block covered approximately 11,000 square kilometres in northeastern Syria. After the Sinochem acquisition, detailed operational information became less prominent on Emerald Energy's public website, making the company's later standalone operating profile less transparent in publicly available reference material. Emerald's history also includes operational incidents. A serious fire at the Gigante field in May 2000 caused one well to remain out of production for several months. In March 2023, violent protests were reported at company facilities near San Vicente del Caguán in Colombia. The available reference material does not establish that either event constituted a corporate scandal or regulatory finding, so they are treated as operational and public-order events rather than scandals here. In July 2009, Emerald announced that it was in preliminary takeover discussions with an unidentified third party. The buyer was subsequently identified as Sinochem Resources UK Limited, an indirect wholly owned subsidiary of Sinochem Corporation. In August 2009, Sinochem proposed a recommended all-cash acquisition at 750 pence per Emerald share, implying a value of approximately £532.1 million. Shareholders approved the scheme of arrangement by a reported 99% majority at an extraordinary general meeting in October. Trading and share transfers ended on 6 October, the company's London Stock Exchange listing was cancelled on 12 October, and Emerald became a Sinochem subsidiary on 13 October 2009. Since then, Emerald Energy has been positioned primarily as a Sinochem-controlled oil exploration and production subsidiary rather than as an independent public-market brand.
History
Emerald Energy was established in 1996 as an oil exploration company and entered the London Stock Exchange in the same year. Its early development centered on Colombia, where it secured an important opportunity at the Matambo field later in 1996. By 1998, drilling had begun at Gigante within the Matambo area. This activity established the company's initial upstream presence in the Upper Magdalena Valley and provided the foundation for its subsequent Colombian portfolio. A serious fire at Gigante in May 2000 interrupted production from one well for several months. The incident was a significant operational event in the company's early history, although the available reference material does not provide further technical, financial, or regulatory details. Emerald continued expanding its Colombian footprint, adding Campo Rico in 2002 and Fortuna in 2003. The Campo Rico Association Contract covered the Campo Rico and Vigia fields in the Llanos Basin, while the Fortuna Association Contract covered acreage in the Middle Magdalena Valley and included the Totumal oil field. Emerald held a 90% working interest in the Fortuna area according to the historical account. In 2003, Emerald also began activities in Syria, its first move outside Colombia. Its Syrian exposure was organized through SNG Overseas Ltd, a wholly owned subsidiary. The company held a 50% working interest in Block 26 in northeastern Syria, alongside Gulfsands Petroleum Syria Ltd. The block covered about 11,000 square kilometres. At the same time, the company changed its board and senior management, marking a management transition during its international expansion. Before its acquisition, Emerald's Colombian portfolio extended beyond its producing or established-field interests. The Maranta E&P Contract covered acreage in the Putumayo Basin; the Ombu E&P Contract covered part of the Caguan Basin; the Helen E&P Contract covered Putumayo Basin acreage where Emerald was a co-venturer; and the Jacaranda E&P Contract covered an area in the Llanos Basin southwest of the Campo Rico operations. The historical portfolio therefore combined field production, appraisal, and frontier exploration rather than relying on a single producing asset. Emerald's independent public-company period ended in 2009. In July, it disclosed preliminary takeover discussions with a third party. On 12 August, Sinochem Resources UK Limited, an indirect wholly owned subsidiary of Sinochem Corporation, announced recommended terms for an all-cash acquisition. The proposal offered 750 pence per share and valued Emerald at approximately £532.1 million. Shareholders approved the transaction at an extraordinary general meeting in October with a reported 99% majority. The last day of dealings and share-transfer registration was 6 October; the London Stock Exchange cancelled the shares on 12 October; and Emerald became a Sinochem subsidiary on 13 October 2009. Following the takeover, Emerald Energy remained associated with oil exploration and production under Sinochem ownership, but detailed operational information was no longer presented as extensively on the company's public website. The company is described as headquartered in London while being registered in the Isle of Man. In March 2023, violent protests were reported at facilities near San Vicente del Caguán in Colombia. Publicly available material supplied for this entry does not provide enough information to assess the company's current production volumes, reserves, workforce, financial performance, or detailed post-acquisition management structure.
- 2023
Protests near San Vicente del Caguán
[1]Violent protests were reported at Emerald Energy facilities in Colombia.
- 2009
Acquired by Sinochem
[1]Sinochem completed its acquisition of Emerald Energy after shareholder approval, and Emerald became a Sinochem subsidiary.
- 2003
Fortuna and Syria expansion
[1]The company expanded into the Fortuna area in Colombia and began operations in Syria, its first activity outside Colombia.
- 2002
Expansion to Campo Rico
[1]Emerald extended its Colombian activities to the Campo Rico area.
- 2000
Gigante fire
[1]A serious fire affected the Gigante operation, leaving one well out of production for several months.
- 1998
Drilling begins at Gigante
[1]Emerald began drilling at Gigante within the Matambo field in Colombia.
- 1996
Company established and listed in London
[1]Emerald Energy was established as an oil exploration business and was first listed on the London Stock Exchange.
- 1996
Matambo opportunity secured
[1]The company secured its first major opportunity at the Matambo field in Colombia.
Products and positioning
An upstream energy company focused on international oil exploration, production, and hydrocarbon-field interests, historically operating as a London-listed independent and subsequently as a Sinochem subsidiary.
Upstream energy · 1996
Oil exploration
Emerald Energy's core business has been the exploration of oil and other hydrocarbon resources. Its historical portfolio included acreage in several Colombian basins and a large exploration block in northeastern Syria. Activities included securing contractual rights, drilling prospects, appraising discoveries, and participating in joint ventures and co-ventured exploration areas.
Upstream energy
Oil and hydrocarbon production
The company has operated interests in producing or potentially producing oil fields, including Gigante in the Matambo area, Totumal within the Fortuna contract, and fields associated with Campo Rico. These activities place Emerald in the upstream segment, where value is generated through field development, production operations, and management of working interests rather than through retail fuel or refined-product sales.
Energy concessions
Exploration and production contracts
Emerald's historical business model relied on association contracts and exploration-and-production contracts. Examples include Matambo, Campo Rico, Fortuna, Maranta, Ombu, Helen, and Jacaranda in Colombia, together with Block 26 in Syria. These contractual interests gave the company rights to explore, appraise, develop, or exploit hydrocarbons within defined areas, often alongside partners.
Brand decisions
2009
Accept Sinochem's recommended acquisitionM&ABackground
Emerald announced preliminary takeover discussions in July 2009, followed by Sinochem Resources UK Limited's recommended all-cash offer in August.
Action taken
Shareholders approved a scheme of arrangement by a reported 99% majority. The offer was 750 pence in cash per share.
Aftermath
Trading in Emerald's shares ended in October 2009, the London listing was cancelled, and the company became a subsidiary of Sinochem.
Implied acquisition value. Approximately £532.1 million (2009 acquisition proposal)
2003
Expand beyond Colombia into SyriaStrategyBackground
After developing a Colombian exploration and production portfolio, Emerald sought an international operating presence.
Action taken
The company began activities in Syria and obtained a 50% working interest in Block 26 through SNG Overseas Ltd.
Aftermath
Syria became the company's first documented operating market outside Colombia, alongside its established Colombian activities.
Sources1 sources
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