GRAMSTORFF (UPPER MORROW)

Oil · District 14 · Lease #7083

Operator: VINTAGE PETROLEUM, INC.

Cum Oil

2.1M BBL

Cum Gas

0 MCF

Wells

14

Production

1996-01 — 2026-03

Peak Month

2013-05

Production History

Cum Oil: 2,092,496 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

25,896 BBL/mo

Di (annual)

16.7%

b-factor

0.0

EUR

1,862,066 BBL

R-squared

0.879

type

exponential

Wells (14)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
105CHAPARRAL ENERGY, L.L.C.18,1492014-05-09
605CHAPARRAL ENERGY, L.L.C.28,2332014-03-07
601TXO PRODUCTION CORP.28,3501985-10-18
2059SLAWSON, DONALD C.18,4001985-03-22
501H & L OPERATING COMPANY18,4001983-12-30
104TXO PRODUCTION CORP.18,4501983-11-18
602TXO PRODUCTION CORP.18,3501983-10-06
103L & M OIL CO.18,4501983-09-19
3L & M OIL CO.18,3501983-09-19
102TXO PRODUCTION CORP.18,4501983-03-16
2TXO PRODUCTION CORP.18,3501982-12-03
101TXO PRODUCTION CORP.18,4501982-08-24
201SLAWSON, DONALD C.18,3001982-07-29
1TXO PRODUCTION CORP.18,4501982-05-19
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