The United States Deep Water Royalty Relief Act (DWRRA) implemented a royalty-relief program that relieves eligible leases from paying royalties on defined amounts of deep-water petroleum production over Federal Outer Continental Shelf lands. After its expiration in 2000, the DWRRA was redefined and extended to promote continued interest in deep water. The Minerals Management Service (MMS) defines a "deep-water" lease as having a minimum water depth of 200 meters (656 ft).
Under the Outer Continental Shelf Lands Act, as amended in 1978, and under the provisions of the DWRRA of 1995, relief from royalty obligations may be granted to increase production or to encourage development on certain producing or non-producing leases. Royalty relief may be applied to either active leases or to newly offered leases directly in their fiscal terms. The primary MMS royalty relief programs include those that were required for Gulf of Mexico deepwater leases (located in water depth greater than 200 meters or 656 feet) issued in 1996–2000 under the DWRRA. After certain sunset provisions in the DWRRA expired in November 2000, the MMS adopted a program that provides lower amounts of royalty relief to each lease. The Federal Government has also offered royalty relief incentives since 2001 for natural gas production from certain deep wells in shallow water (15,000 feet total well depth) for newly issued leases, and commenced a similar program for active shallow water leases where drilling started on or after 26 March 2003.
The Energy Information Administration estimates there were 18,812 billion cubic feet (Bcf) of dry natural gas proved reserves and 4,144 million barrels (658,800,000 m3) of crude oil proved reserves in the Federal Gulf of Mexico as of the end of 2004. About 45 percent of the natural gas proved reserves and 79 percent of the crude oil proved reserves in the Federal Gulf of Mexico are in deepwater areas, although not all of this is subject to royalty relief. The following sections highlight provisions in several rules and regulations under which oil and natural gas production volumes may receive royalty relief.
The Atlantis oil field is the third largest oil field in the Gulf of Mexico. The field was discovered in 1998 and is located at the Green Canyon blocks 699, 700, 742, 743, and 744 in United States federal waters in the Gulf of Mexico about 130 miles (210 km) from the coast of Louisiana. The oil field lies in water depths ranging from 4,400 to 7,100 feet. The subsea structure of Atlantis has long been the target of safety critics.
The Minerals Management Service (MMS) was an agency of the United States Department of the Interior that managed the nation's natural gas, oil and other mineral resources on the outer continental shelf (OCS).
Thunder Horse oil field is a large offshore deepwater oil field in the Gulf of Mexico, around 150 miles (240 km) southeast of New Orleans, Louisiana. Large new oil discoveries within it were announced in early 2019.
Jack 2 is a test well in the deep waters of the Gulf of Mexico that successfully extracted oil from the Paleogene area of the Gulf in the second quarter of 2006. The field owners Chevron, Devon Energy and Norway's Statoil drilled to about 20,000 feet (6,100 m) below the sea floor, the wellhead being 7,000 feet (2,100 m) below sea-level, for a total depth of 28,125 feet. Oil flowed at more than 6,000 barrels (950 m3) per day. At the time, it was the deepest ever successful test well in the Gulf of Mexico to date. Jack 2 is a joint venture between Chevron Corporation (50%), Devon Energy (25%), and StatoilHydro (25%).
Offshore drilling is a mechanical process where a wellbore is drilled below the seabed. It is typically carried out in order to explore for and subsequently extract petroleum that lies in rock formations beneath the seabed. Most commonly, the term is used to describe drilling activities on the continental shelf, though the term can also be applied to drilling in lakes, inshore waters and inland seas.
Subsea technology involves fully submerged ocean equipment, operations, or applications, especially when some distance offshore, in deep ocean waters, or on the seabed. The term subsea is frequently used in connection with oceanography, marine or ocean engineering, ocean exploration, remotely operated vehicle (ROVs) autonomous underwater vehicles (AUVs), submarine communications or power cables, seafloor mineral mining, oil and gas, and offshore wind power.
Noble Energy, Inc. was a company engaged in hydrocarbon exploration headquartered in Houston, Texas. In October 2020, the company was acquired by Chevron Corporation.
The Outer Continental Shelf (OCS) is a feature of the geography of the United States. The OCS is the part of the internationally recognized continental shelf of the United States which does not fall under the jurisdictions of the individual U.S. states.
Within the petroleum industry, proven crude oil reserves in the United States was 44.4 billion barrels (7.06×109 m3) of crude oil as of the end of 2021, excluding the Strategic Petroleum Reserve.
The Mississippi Canyon is an undersea canyon, part of the Mississippi Submarine Valley in the North-central Gulf of Mexico, south of Louisiana. According to the U.S. Geological Survey GLORIA Mapping Program, it is the dominant feature of the north-central Gulf of Mexico. According to GCAGS Transactions, it has an average width of 8 kilometres (5.0 mi), and a length of 120 kilometres (75 mi). The US Minerals Management Service (MMS) applies the name Mississippi Canyon to numbered federal oil and gas lease blocks over a large offshore area centered on, but mostly outside, the submarine canyon.
Offshore oil and gas in the United States provides a large portion of the nation’s oil and gas supply. Large oil and gas reservoirs are found under the sea offshore from Louisiana, Texas, California, and Alaska. Environmental concerns have prevented or restricted offshore drilling in some areas, and the issue has been hotly debated at the local and national levels.
Offshore drilling for oil and gas on the Atlantic coast of the United States took place from 1947 to the early 1980s. Oil companies drilled five wells in Atlantic Florida state waters and 51 exploratory wells on federal leases on the outer continental shelf of the Atlantic coast. None of the wells were completed as producing wells. All the leases have now reverted to the government.
The Tiber Oil Field is a deepwater offshore oil field located in the Keathley Canyon block 102 of the United States sector of the Gulf of Mexico. The deepwater field was discovered in September 2009 and it is operated by BP. Described as a "giant" find, it is estimated to contain 4 to 6 billion barrels of oil in place. Although BP states it is too early to be sure of the size – a "huge" field is usually considered to contain 250 million barrels. It required the drilling of a 10,685 m (35,056 ft) deep well under 1,260 m (4,130 ft) of water, making it one of the deepest wells ever drilled at the time of discovery.
Offshore oil and gas in the Gulf of Mexico is a major source of oil and natural gas in the United States. The western and central Gulf of Mexico, which includes offshore Texas, Louisiana, Mississippi, and Alabama, is one of the major petroleum-producing areas of the United States. Oil production from US federal waters in the Gulf of Mexico reached an all-time annual high of 1.65 million barrels per day in 2017. Oil production is expected to continue the upward trend in 2018 and 2019, based on ten new oil fields which are planned to start production in those years. According to the Energy Information Administration, "Gulf of Mexico federal offshore oil production accounts for 15% of total U.S. crude oil production and federal offshore natural gas production in the Gulf accounts for 5% of total U.S. dry production."
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.
Chris Craig Oynes was an American lawyer and federal government administrator.
On May 30, 2010 a 6-month moratorium on all deepwater offshore drilling on the Outer Continental Shelf was declared by U.S. Secretary of the Interior Ken Salazar. The limitation was in response to the Deepwater Horizon oil spill which occurred in the Gulf of Mexico.
Following is a Timeline of the Deepwater Horizon oil spill for May 2010.
Perdido (Spanish for lost) is the deepest floating oil platform in the world at a water depth of about 2450 meters (8040 feet) operated by the Shell Oil Company in the Gulf of Mexico. The platform is located in the Perdido fold belt which is a rich discovery of crude oil and natural gas. The Perdido spar began production in 2010 and its peak production is 100,000 barrels of oil equivalent (ca. 16,000 m3/d) and 200 million cubic feet of gas per day (ca. 5.7*106 m3/d).
HWCG LLC is a not-for-profit consortium of deepwater oil and gas companies. HWCG maintains a comprehensive deepwater well containment response model that can be activated immediately in the event of a US Gulf of Mexico subsea blowout. It comprises oil and gas companies operating in the Gulf and incorporates the consortium’s generic well containment plan. HWCG has a healthy mutual aid component whereby HWCG members will respond and support another member’s incident.