DOUGLAS MINERAL TRUST -G-

Oil · District 13 · Lease #14991

Operator: WILSON-SHAB CORP.

Cum Oil

259k BBL

Cum Gas

0 MCF

Wells

14

Production

1993-01 — 2026-03

Peak Month

1993-10

Production History

Cum Oil: 259,220 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,050 BBL/mo

Di (annual)

3.8%

b-factor

0.0

EUR

279,576 BBL

R-squared

0.490

type

exponential

Wells (14)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
14EXTEX OPERATING COMPANY14,0002012-02-28
13M & A OIL COMPANY, LTD.14,0001981-10-19
12SHAB OIL COMPANY14,0001979-07-10
10SHAB OIL COMPANY14,0001978-12-21
11SHAB OIL COMPANY14,0001978-12-21
9SHAB OIL COMPANY14,0001978-09-27
8SHAB OIL COMPANY14,0001977-12-20
142-485-00037--------
242-485-90782--------
342-485-90783--------
442-485-21147--------
542-485-21152--------
642-485-21145--------
742-485-90787--------
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