HARTFIELD

Oil · District 01 · Lease #12052

Operator: NELMS BROS. OIL PROPERTIES INC.

Fields: LA VERNIA

Cum Oil

215 BBL

Cum Gas

4 MCF

casinghead

Wells

7

Production

1993-01 — 1995-10

Peak Month

1994-08

Production History

Cum Oil: 215 BBL Cum Gas: 4 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

20 BBL/mo

Di (annual)

954.0%

b-factor

1.2

EUR

103 BBL

R-squared

0.331

type

hyperbolic

Operator History (from monthly production reports)

1996-06 — 2026-07 GREAT PLAINS RESOURCES, INC. 362 mo
1995-04 — 1996-05 GINCO OPERATING CO. 14 mo
1994-07 — 1995-03 ADCO ENERGY, INC. 9 mo
1994-04 — 1994-06 NELMS BROS. OIL PROPERTIES INC. 3 mo
1993-02 — 1994-03 BARON PETROLEUM INC. 14 mo
1993-01 — 1993-01 ADCO ENERGY, INC. 1 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5BGREAT PLAINS RESOURCES INC.19001988-12-30
3BGREAT PLAINS RESOURCES INC.19001988-11-08
4BGREAT PLAINS RESOURCES INC.19001988-11-08
1BGREAT PLAINS RESOURCES INC.11,5001988-03-10
2BGREAT PLAINS RESOURCES INC.19001988-03-10
1AGREAT PLAINS RESOURCES INC.11,0001986-03-21
2AGREAT PLAINS RESOURCES INC.11,0001986-03-21