MACHA "13

Oil · District 8A · Lease #69087

Operator: GREAT WESTERN DRILLING COMPANY

Cum Oil

27k BBL

Cum Gas

7k MCF

casinghead

Wells

2

Production

2007-03 — 2015-08

Peak Month

2007-04

Production History

Cum Oil: 27,169 BBL Cum Gas: 7,091 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,655 BBL/mo

Di (annual)

204.0%

b-factor

0.9

EUR

38,511 BBL

R-squared

0.857

type

hyperbolic

Operator History (from monthly production reports)

2007-03 — 2016-02 GREAT WESTERN DRILLING COMPANY 108 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3GREAT WESTERN DRILLING COMPANY18,0002007-10-08
1GREAT WESTERN DRILLING COMPANY28,1002006-05-25