Oil spill volume is a limited measure of damage or impact. Smaller spills have already proven to have a great impact on ecosystems, such as the "Exxon Valdez" oil spill because of the remoteness of the site or the difficulty of an emergency environmental response. Since 2004, between 300 and 700 barrels of oil per day have been leaking from the site of an oil-production platform 12 miles off the Louisiana coast which sank in the aftermath of Hurricane Ivan. The oil spill, which officials estimate could continue throughout the 21st century, will eventually overtake the 2010 BP Deepwater Horizion disaster as
Australian Marine Oil Spill Centre 24-hour stand-by. The AMOSplan is voluntary mutual aid arrangement where oil company equipment may be shared to best respond to a spill. AMOSplan replaced the former Marine Oil Spills Action Plan (MOSAP). The MOSAP was activated when an oil spill became too large for an individual company to adequately deal with. Integration with government responses to spills is framed within the National Plan to Combat Pollution of the Sea by Oil, which is managed by the Australian Maritime Safety Authority. In 2009, AMOSC responded to the Montara oil spill in the Timor Sea by mobilising aircraft and dispersant for aerial