< leases

HEJL, J. UNIT -A-

Oil · District 03 · Lease #13523

Operator: SMITH BROTHERS OIL & GAS, INC.

Fields: GIDDINGS (AUSTIN CHALK-3)

Cum Oil

2k BBL

Cum Gas

50k MCF

casinghead

Wells

1

Production

1993-01 — 1999-12

Peak Month

1993-01

Production History

Cum Oil: 1,842 BBL Cum Gas: 49,566 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

54 BBL/mo

Di (annual)

45.9%

b-factor

0.0

EUR

1,397 BBL

R-squared

0.363

type

exponential

Operator History (from monthly production reports)

2000-04 — 2026-07 SMITH BROTHERS OIL & GAS, INC. 316 mo
1999-04 — 2000-03 PETRA OLEUM CORP. 12 mo
1997-02 — 1999-03 COSTILLA ENERGY, INC. 26 mo
1996-06 — 1997-01 COSTILLA PETROLEUM CORPORATION 8 mo
1995-02 — 1996-05 PARKER & PARSLEY PRODUCING L.P. 16 mo
1994-10 — 1995-01 PARKER & PARSLEY DEVELOPMENT L.P 4 mo
1994-04 — 1994-09 BRIDGE OIL COMPANY, L. P. 6 mo
1993-01 — 1994-03 SANTA FE ENERGY RESOURCES, INC. 15 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-051-31075SMITH BROTHERS OIL & GAS INC.19,0001980-10-09