CALDWELL

Oil · District 8 · Lease #20518

Operator: PETREE OPERATING, INC.

Cum Oil

48k BBL

Cum Gas

0 MCF

Wells

10

Production

1993-01 — 2026-03

Peak Month

1993-03

Production History

Cum Oil: 47,868 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

364 BBL/mo

Di (annual)

13.3%

b-factor

0.3

EUR

43,220 BBL

R-squared

0.730

type

hyperbolic

Wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
14OAKTREE OIL COMPANY11,2002012-04-13
12OAKTREE OIL COMPANY11,2002010-02-17
10OAKTREE OIL COMPANY11,3002003-02-26
9OAKTREE OIL COMPANY11,3001996-03-18
7OAKTREE OIL COMPANY11,3001991-10-04
6OAKTREE OIL COMPANY11,2001991-04-05
5OAKTREE OIL COMPANY11,0001986-06-23
4OAKTREE OIL COMPANY11,0001985-12-03
3OAKTREE OIL COMPANY11,0001985-08-09
2WAL-KEY OIL COMPANY, INC.24,4541983-06-20
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