Oil Stops Flowing as BP Begins to Test Cap on Leaking Gulf Well - WSJ
Wellhead - Wikipedia
BP affixes new cap on Gulf oil well; tests ahead
Introduction to oil processing - Lecture 2 (Wellheads) - YouTube
Oil Well Cap
National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling | Response | Stemming the Flow - Capping Stack
Approving funding to cap abandoned oil and gas wells would aid the environment and protect jobs | Pittsburgh Post-Gazette
BP Installs New Well Cap
Update: Change in cap at oil spill site will mean more oil gushing, then should reduce flow - al.com
BP's new oil cap headed for well, then testing - The San Diego Union-Tribune
BP's new oil cap headed for well, then testing | MPR News
Wellhead - Wikipedia
Abandoned Oil Wells Raise Fears of Pollution - The New York Times
Montana, Wyoming set sights on federal funds to cap hundreds of abandoned wells | YPR
Wellbore: What it is, How it Works, Examples
BP works to put a tighter-fitting cap on the well
Gulf Well Cap Removed, Oil Gushes Freely Again - YouTube
Group caps abandoned wells to cut methane emissions - The Washington Post
Feds to remove cap from Gulf oil spill well so that blowout preventer can be raised - al.com
BP 'installs new sealing cap' on leaking Gulf oil well
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BP working to settle cap over oil well
BP places tighter cap on gulf well – The Denver Post
