CASTELLANO

Oil · District 1 · Lease #10933

Operator: TEXAS SECONDARY OIL CORPORATION

Fields: SOMERSET

Cum Oil

4k BBL

Cum Gas

0 MCF

Wells

5

Production

1993-01 — 2026-03

Peak Month

2008-02

Production History

Cum Oil: 4,405 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

49 BBL/mo

Di (annual)

24.6%

b-factor

0.1

EUR

2,564 BBL

R-squared

0.746

type

hyperbolic

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5CLARK, G. A., TRUSTEE11,2001980-04-22
4CLARK, G. A., TRUSTEE11,2001980-03-26
3CLARK, G. A., TRUSTEE11,2001979-12-31
2CLARK, G. A., TRUSTEE11,2001979-10-22
1CLARK, G. A., TRUSTEE11,2001979-08-30
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