ROBERTS

Oil · District 09 · Lease #29417

Operator: GRAYSON PETROLEUM COMPANY

Cum Oil

190 BBL

Cum Gas

479 MCF

casinghead

Wells

1

Production

1997-11 — 1998-10

Peak Month

1998-02

Production History

Cum Oil: 190 BBL Cum Gas: 479 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

65 BBL/mo

Di (annual)

747.8%

b-factor

0.0

EUR

106 BBL

R-squared

0.807

type

exponential

Operator History (from monthly production reports)

1998-09 — 1999-01 CHOLLA PETROLEUM, INC. 5 mo
1997-11 — 1998-08 GRAYSON PETROLEUM COMPANY 10 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1CHOLLA PETROLEUM INC.28,5501997-03-18