Patent Assignment
Reel/Frame 013822/0650
Assignment of Assignor's Interest
Recorded: 2003-03-04
Pages: 4
Assignors
WELLINGTON, SCOTT LEE
Executed: 2003-02-03
DE ROUFFIGNAC, ERIC PIERRE
Executed: 2003-02-03
VINEGAR, HAROLD J.
Executed: 2003-02-03
Assignee
SHELL OIL COMPANY
P.O. BOX 2463, HOUSTON, TEXAS, 77252-8463
Covered Property
(1)
In Situ Recovery from Lean and Rich Zones in a Hydrocarbon Containing Formation