Oct. 2010 - ClampOn will supply numerous subsea sand monitors for the BP Atlantis project, which are acoustic sensors with atmospheric and high-pressure chambers, pipe contact verification, electronic beam welding and dual independent electronics. The Atlantis project is situated in 7,070 feet (2,155 meters) of water and is located more than 150 miles (241 kilometers) south of New Orleans in the Green Canyon block.

Feb. 2010 - BP Exploration & Production Inc. has submitted an Exploration Plan to the MMS for operations at the Atlantis field. The Atlantis field is located in the Green Canyon area covering blocks 698, 699, 700, 742, 743 and 744, in water depths of up to 6,133 feet (1,869 meters). The field is currently producing via the Atlants semisub facility. The company proposes to drill and temporarily abandon two (2) exploation wells in Drill Center No. 2 (DC2) located within part of the Atalantis GC743 Unit area. The wells will be drilled with Transocean's dynamically positioning Deepwater Development Driller II or similar DP semisub rig rated for ultra deepwater drilling. BP is the operator of the Atlantis producing field and holds a 56% working interest. Partner, BHP holds a 44% working interest.

Nov. 2009 - Transocean's Development Driller III is to drill development well DC-311 at BP's Atlantis producing field on Green Canyon block 743. BP has planned for 16 producing wells and 4 injectors at the Atlantis field which, began production in 2007. BP operates Atlantis with 56% working interest.

Oct. 2009 - SeaBird has completed an Ocean Bottom Node survey at BP's Atlantis field for reservoir imaging. The survey required 500 nodes to be deployed and removable sensors then positioned in the seabed across a steep escarpment at depths ranging from 4,265 to 7,218 feet (1,300 to 2,200 meters) of water. The survey results will give BP dynamic information on the fluid flow in the reservoir on the field.

Oct. 2009 - BP is using Transocean's GSF Development Driller II to perform workover operations at the Atlantis field on Green Canyon blcok 743. Operations include temporary abandonment of well DC131 on GC743 (BH - GC744). BP is using a phased development approach, with the first phase tieback to the Atlantis production facility.

Sep. 2009 - Aker Solutions signed a contract with BP to perform subsea construction activities at the operator's Atlantis and Thunder Horse fields in the Gulf of Mexico. The scope of work includes installation of subsea hardware including manifolds, pipeline-end manifolds, jumpers, flying leads and related equipment. The project is expected to start in Q4 2009 and will be executed by Aker Solutions' vessels, the BOA Sub C and BOA Deep C. The Atlantis field covers Green Canyon Blocks 698, 588, 700, 742, 743 and 744 while Thunder Horse covers Mississippi Canyon Blocks 777, 778 and 822 in water depths of more than 5,999 feet (1,829 meters).

Aug. 2009 - BP submitted a Development Operations Coordination Document to MMS for development activities at the Atlantis North field. The DOCD proposes to drill seven wells and place associated subsea connections in order to produce these wells through the existing Atlantis Unit production system. All wells will be drilled from Drill Center No. 3, located in Green Canyon Block 743 and DeSoto Canyon Block 313, formerly the GC 743, Well No. 5. Two dynamically positioned MODUs will be used to drill and complete the workover wells and to assist in subsea equipment installation.

Dec. 2008 - BP has awarded Worley Parsons an engineering and project management services contract which includes the phase 2 development of its Atlantis facility. The Atlantis platform is the deepest moored floating production facility in the world sitting in water depths of 7, 070 feet. Phase 1 production started in October 2007.

Dec. 2007 - BHP Billiton has ramped up of oil and gas production from the Atlantis field development located in the deepwater Gulf of Mexico, approximately 130 miles (208 kilometers) off the coast of Louisiana. Production commenced with the commissioning of wells and facilities in October 2007. With gas facilities and export pipelines now fully commissioned, gas sales have started and oil volumes are increasing. Additional wells will continue to be brought onstream, and the facility is expected to reach plateau production over the next six to 12 months.

Oct. 2007 - On Sunday September 2, 2007, the P3 flow line was landed in its receptacle porch on the Atlantis PQ (Production Quarters). This followed the handover of the P3 steel catenary riser (SCR) from HMC's Balder to the PQ chain jack. By reaching this milestone the Balder completed the extensive flowlines and risers installation program which started back in April 2006. The installation of the six in-field Atlantis lines has been a tremendous challenge.

Aug. 2006 - BP's 58,700 metric ton semisubmersible Atlantis platform sets sail for its permanent location in the deepwater Gulf of Mexico. Designed to process 200,000 barrels of oil and 180 million cubic feet of gas per day, Atlantis will be the deepest moored floating production facility in the world in 7,074 ft of water.

Dec. 2003 - BP chooses GlobalSantaFe's Development Driller ll to both drill and complete some 20 subsea wells at its deepwater Atlantis project beginning in July 2005. Bold move could eliminate the need for a second rig.

Dec. 2003 - GlobalSantaFe revealed that BP has awarded a three year contract for their Gulf of Mexico Atlantis project to GlobalSantaFe's newbuild semisubmersible rig, Development Driller II. The estimated 20 well project, has a total contract value of approximately $200 million, and is expected to commence on July 1, 2005.

Feb. 2003 - J. Ray McDermott has received a commitment from BP to begin fabrication of the Atlantis topsides. Fabrication will commence in August 2003 with an estimated completion date of May 2005.

Feb. 2003 - BHP Billiton reports that the Atlantis-6 well confirms the presence of hydrocarbons in the previously unexplored northern part of the structure. Additional drilling will be necessary to further appraise this portion of the field and assess the impact on overall reserves. Before drilling of Atlantis-6, the company's estimated gross proven and probable reserves at Atlantis were 635 million barrels of oil equivalent.

Feb. 2003 - BHP Billiton reports that the Atlantis-6 well confirms the presence of hydrocarbons in the previously unexplored northern part of the structure. Additional drilling will be necessary to further appraise this portion of the field and assess the impact on overall reserves. Before drilling of Atlantis-6, the company's estimated gross proven and probable reserves at Atlantis were 635 million barrels of oil equivalent. Atlantis-6 is located on Green Canyon Block 743. The well encountered hydrocarbons in several zones, including 605 feet (184 meters) of gross oil pay/460 feet (140 meters) of net oil pay and 360 feet (109 meters) of gross gas pay/200 feet (61 meters) of net gas pay.

Oct. 2002 - Subsea 7 has been awarded a $30 million subsea installation contract by BP for its tlantis development in the Gulf of Mexico. For Atlantis, the installation comprises umbilicals totaling over 42 kilometers in length with options for flying leads. The installations will be placed at 6000 and 7000 feet respectively, it said. The Atlantis field is approximately 125 miles South of New Orleans in the vicinity of Green Canyon block 743. Atlantis is operated by BP with a 56% interest and BHP Billiton holds the remaining 44% interest.

May. 2002 - BHP Billiton has approved up to US $355 million to progress the development of the Atlantis oil and gas field in the Gulf of Mexico. BHP Billiton holds a 44 percent equity interest in the field. BP is the operator of the field and holds the remaining 56 percent interest.

May. 2002 - BHP Billiton has approved up to US $355 million to progress the development of the Atlantis oil and gas field in the Gulf of Mexico. BHP Billiton holds a 44 percent equity interest in the field. BP is the operator of the field and holds the remaining 56 percent interest. Studies conducted by the operator estimate the Atlantis field's gross proven and probable reserves to be 575 million barrels of oil equivalent (mmboe) (BHP Billiton share 222 mmboe after royalties of 12.5%), making it the third largest field in the Gulf of Mexico deepwater.

May. 2002 - BP disclosed updated reserves figures for its Atlantis discovery in the Southern Green Canyon region of the Gulf of Mexico. Based on data from additional appraisal drilling in the field, Atlantis is now believed to have reserves 575 million barrels of oil equivalent (boe), making it the third largest field discovered in the Gulf. BP's Thunder Horse field is the Gulf's largest oil and gas find. The company's initial estimates of Atlantis reserves were closer to 300 million barrels.

Oct. 2001 - BHP Billiton announced results from appraisal drilling at the Atlantis field in the Western Atwater Foldbelt of the Gulf of Mexico. The Atlantis-3 appraisal well and a lateral sidetrack were drilled on Green Canyon Block 743 in 6,612 feet of water by the BP-operated Glomar Explorer. The sidetrack well reached a total depth of 18,760 feet, encountering hydrocarbon-bearing reservoirs and confirming resource characteristics from earlier drilling on the discovery.

Aug. 2000 - BHP Limited announced that the Atlantis 2 appraisal well on Green Canyon Block 743 confirms a major oil field with the potential for hundreds of millions of barrels of oil.

Aug. 2000 - BHP Limited announced that the Atlantis 2 appraisal well on Green Canyon Block 743 confirms a major oil field with the potential for hundreds of millions of barrels of oil. Atlantis 2 is located in the Atwater Foldbelt of the deepwater Gulf of Mexico and encountered oil bearing sands with a net pay in excess of 200 feet. This oil zone, together with the oil-bearing sands reported earlier in July make for a total net pay of over 500 feet. Atlantis is the third discovery in the Atwater Foldbelt. Earlier discoveries are Neptune which was discovered in 1995 and Mad Dog which was discovered in 1998. Atlantis 2 was drilled by Global Marine's new-build drillship, C.R. Luigs, to a total depth of 18,600 feet. BHP owns a forty-four percent working interest and BP Amoco is the operator and holds a 56 percent interest.