SHIRK, MARY K.

Oil · District 9 · Lease #7859

Operator: SOUTHWEST ROYALTIES, INC.

Cum Oil

61k BBL

Cum Gas

0 MCF

Wells

1

Production

1993-01 — 2007-08

Peak Month

1993-03

Production History

Cum Oil: 60,901 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,208 BBL/mo

Di (annual)

24.2%

b-factor

0.0

EUR

59,711 BBL

R-squared

0.698

type

exponential

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1UNION TEXAS PETROLEUM CORP.110,1001979-04-17
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