Reliance Industries Limited is an Indian multinational conglomerate headquartered in Mumbai. Its businesses include energy, petrochemicals, natural gas, retail, entertainment, telecommunications, mass media, and textiles. Reliance is the largest public company in India by market capitalisation and revenue, and the 100th largest company worldwide. It is India's largest private tax payer and largest exporter, accounting for 7% of India's total merchandise exports. The company has relatively little free cash flow and high corporate debt.
Mukesh Dhirubhai Ambani is an Indian businessman and the chairman and managing director of Reliance Industries. With an estimated net worth of $113.7 billion as of March 2024, he is the richest person in Asia and 11th richest in the world. Sometimes characterized as a plutocrat, he has attracted both fame and notoriety for reports of market manipulation, political corruption, cronyism, and exploitation.
Transocean Ltd. is an American drilling company. It is the world's largest offshore drilling contractor based on revenue and is based in Vernier, Switzerland. The company has offices in 20 countries, including Canada, the United States, Norway, United Kingdom, India, Brazil, Singapore, Indonesia, and Malaysia.
A drillship is a merchant vessel designed for use in exploratory offshore drilling of new oil and gas wells or for scientific drilling purposes. In recent years the vessels have been used in deepwater and ultra-deepwater applications, equipped with the latest and most advanced dynamic positioning systems.
The Jamnagar Refinery is a private sector crude oil refinery owned by Reliance Industries in Motikhavdi, Jamnagar, Gujarat, India. The refinery was commissioned on 14 July 1999 with an installed capacity of 668,000 barrels per day (106,200 m3/d). Its current installed capacity is 1,240,000 barrels per day (197,000 m3/d). It is currently the largest refinery in the world.
The Oil and Natural Gas Corporation Limited (ONGC) is an Indian central public sector undertaking under the ownership of Ministry of Petroleum and Natural Gas, Government of India. The company is headquartered in Delhi. ONGC was founded on 14 August 1956 by the Government of India. It is the largest government-owned-oil and gas explorer and producer in the country and produces around 70 percent of India's domestic production of crude oil and around 84 percent of natural gas. ONGC is vertically integrated across the entire oil and gas industry. In November 2010, the Government of India conferred the Maharatna status to ONGC.
Deepwater Horizon was an ultra-deepwater, dynamically positioned, semi-submersible offshore drilling rig owned by Transocean and operated by BP. On 20 April 2010, while drilling at the Macondo Prospect, a blowout caused an explosion on the rig that killed 11 crewmen and ignited a fireball visible from 40 miles (64 km) away. The fire was inextinguishable and, two days later, on 22 April, the Horizon sank, leaving the well gushing at the seabed and turning into the largest marine oil spill in history.
Deepwater Millennium was a fifth generation Samsung/Reading & Bates designed, dynamic positioned (DP) Marshall Islands-flagged drillship owned by Transocean. The vessel was capable of drilling in water depths up to 8,100 ft using an 18.75 in (47.6 cm), 15,000 psi blowout preventer (BOP), and a 21 in (53 cm) outside diameter (OD) marine riser. It was retired in 2018.
BP p.l.c. is a British multinational oil and gas company headquartered in London, England. It is one of the oil and gas "supermajors" and one of the world's largest companies measured by revenues and profits. It is a vertically integrated company operating in all areas of the oil and gas industry, including exploration and extraction, refining, distribution and marketing, power generation, and trading.
Krishna Godavari Basin is a peri-cratonic passive margin basin in India. It is spread across more than 50,000 square kilometres in the Krishna River and Godavari River basins in Andhra Pradesh. The site is known for the D-6 block where Reliance Industries discovered the biggest natural gas reserves in India in 2003.
The Deepwater Horizon oil spill was an environmental disaster which began on 20 April 2010, off the coast of the United States in the Gulf of Mexico on the BP-operated Macondo Prospect, considered the largest marine oil spill in the history of the petroleum industry and estimated to be 8 to 31 percent larger in volume than the previous largest, the Ixtoc I oil spill, also in the Gulf of Mexico. Caused in the aftermath of a blowout and explosion on the Deepwater Horizon oil platform, the United States federal government estimated the total discharge at 4.9 MMbbl. After several failed efforts to contain the flow, the well was declared sealed on 19 September 2010. Reports in early 2012 indicated that the well site was still leaking. The Deepwater Horizon oil spill is regarded as one of the largest environmental disasters in world history.
The Macondo Prospect is an oil and gas prospect in the United States Exclusive Economic Zone of the Gulf of Mexico, off the coast of Louisiana. The prospect was the site of the Deepwater Horizon drilling rig explosion in April 2010 that led to a major oil spill in the region from the first exploration well, named itself MC252-1, which had been designed to investigate the existence of the prospect.
On April 20, 2010, an explosion and fire occurred on the Deepwater Horizon semi-submersible mobile offshore drilling unit, which was owned and operated by Transocean and drilling for BP in the Macondo Prospect oil field about 40 miles (64 km) southeast off the Louisiana coast. The explosion and subsequent fire resulted in the sinking of the Deepwater Horizon and the deaths of 11 workers; 17 others were injured. The same blowout that caused the explosion also caused an oil well fire and a massive offshore oil spill in the Gulf of Mexico, considered the largest accidental marine oil spill in the world, and the largest environmental disaster in United States history.
The following is a timeline of the Deepwater Horizon oil spill. It was a massive oil spill in the Gulf of Mexico, the largest offshore spill in U.S. history. It was a result of the well blowout that began with the Deepwater Horizon drilling rig explosion on April 20, 2010.
Discoverer Enterprise is a fifth generation deepwater double hulled dynamically positioned drillship owned and operated by Transocean Offshore Deepwater Drilling Inc., capable of operating in moderate environments and water depths up to 3,049 m (10,000 ft) using an 18.75 in (47.6 cm), 15,000 psi blowout preventer (BOP), and a 21 in (53 cm) outside diameter (OD) marine riser. From 1998 to 2005 the vessel was Panama-flagged and currently flies the flag of convenience of the Marshall Islands.
The Kaskida Oil Field is an offshore oil field located in the Keathley Canyon block 292 of the United States sector of the Gulf of Mexico, 250 miles (400 km) south-west of New Orleans, Louisiana. The field is operated by BP, and owned by BP (100%).
Following is a Timeline of the Deepwater Horizon oil spill for May 2010.
The Panna-Mukta oilfield consists of two contiguous offshore oil fields to the northwest of Mumbai, India.
The petroleum industry in India dates back to 1889 when the first oil deposits in the country were discovered near the town of Digboi in the state of Assam. The natural gas industry in India began in the 1960s with the discovery of gas fields in Assam and Maharashtra. As on 31 March 2018, India had estimated crude oil reserves of 594.49 million metric tonnes (Mt) and natural gas reserves of 1339.57 billion cubic metres of natural gas (BCM).
₹14,869 crore (US$1.9 billion) (2023) [1] 
₹−915 crore (US$−110 million) (2023)
