COWDEN, E.F. -D-

Oil · District 10 · Lease #25055

Operator: PETROLEUM TECHNICAL SERVICES CO.

Fields: COWDEN, SOUTH

Cum Oil

75k BBL

Cum Gas

0 MCF

Wells

4

Production

1993-01 — 2026-03

Peak Month

2016-12

Production History

Cum Oil: 75,247 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

441 BBL/mo

Di (annual)

25.4%

b-factor

0.0

EUR

20,784 BBL

R-squared

0.499

type

exponential

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4CUERVO, INC.14,2502016-05-20
3CUERVO, INC.24,2502016-03-21
2CUERVO, INC.14,5001999-10-18
1PETROLEUM TECHNICAL SERVICES CO.14,2001978-03-27
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