Editing Strategic Petroleum Reserve (United States) (section)

===Retired===
* Weeks Island: [[Iberia Parish, Louisiana|Iberia Parish]], Louisiana (decommissioned 1999): Capacity of {{convert|72|Moilbbl|m3}}. This facility was a conventional [[room and pillar]] near-surface [[salt mine]], formerly owned by [[Morton Salt]]. In 1993, a [[sinkhole]] formed on the site, allowing fresh water to intrude into the mine. Because of the mine's construction in salt deposits, fresh water would erode the ceiling, potentially causing the structure to fail. The mine was backfilled with salt-saturated [[brine]]. This process, which allowed for recovery of 98% of the petroleum stored in the facility, reduced the risk of further [[fresh water]] intrusion, and helped prevent the remaining oil from leaking into the [[aquifer]] that is located over the salt dome.