ROBTANN

Oil · District 7B · Lease #28266

Operator: WALTER EXPLORATION INC.

Cum Oil

111k BBL

Cum Gas

5k MCF

casinghead

Wells

1

Production

1997-07 — 2013-11

Peak Month

1997-10

Production History

Cum Oil: 111,008 BBL Cum Gas: 4,950 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,432 BBL/mo

Di (annual)

17.0%

b-factor

0.2

EUR

124,007 BBL

R-squared

0.846

type

hyperbolic

Operator History (from monthly production reports)

2001-10 — 2014-10 WALTER EXPLORATION COMPANY 157 mo
1997-07 — 2001-09 WALTER EXPLORATION INC. 51 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SCOUT ENERGY MANAGEMENT LLC24,2001997-07-16