Number | Name | Date | Kind |
---|---|---|---|
3195634 | Hill | Jul 1965 | |
3989108 | Allen | Nov 1976 | |
4068720 | Hessert et al. | Jan 1978 | |
4321968 | Clear | Mar 1982 |
Entry |
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"Production Operations", Allen, Thomas O.; Roberts, Alan P., 1978; Oil and Gas Consultants International, pp. 142-147. |