ROBTANN "C"

Oil · District 7B · Lease #28098

Operator: WALTER EXPLORATION INC.

Cum Oil

62k BBL

Cum Gas

5k MCF

casinghead

Wells

1

Production

1997-01 — 2004-12

Peak Month

1999-12

Production History

Cum Oil: 62,236 BBL Cum Gas: 4,640 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,720 BBL/mo

Di (annual)

72.3%

b-factor

0.0

EUR

28,554 BBL

R-squared

0.923

type

exponential

Operator History (from monthly production reports)

2001-10 — 2014-10 WALTER EXPLORATION COMPANY 157 mo
1997-01 — 2001-09 WALTER EXPLORATION INC. 57 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1WALTER EXPLORATION COMPANY23,9001999-08-02