ROBERTS

Oil · District 8A · Lease #63263

Operator: THREE SPAN OIL & GAS, INC.

Fields: LEVELLAND

Cum Oil

498k BBL

Cum Gas

284k MCF

casinghead

Wells

10

Production

1993-01 — 2026-04

Peak Month

1993-07

Production History

Cum Oil: 497,716 BBL Cum Gas: 284,368 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,098 BBL/mo

Di (annual)

5.3%

b-factor

0.0

EUR

443,782 BBL

R-squared

0.718

type

exponential

Operator History (from monthly production reports)

1999-02 — 2026-07 THREE SPAN OIL & GAS, INC. 330 mo
1993-01 — 1999-01 B. & M. FAMILY OIL COMPANY 73 mo

Wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9THREE SPAN OIL & GAS, INC.15,0002000-03-22
5THREE SPAN OIL & GAS, INC.15,0001985-07-16
5WTHREE SPAN OIL & GAS, INC.15,0001985-07-16
8THREE SPAN OIL & GAS, INC.15,0001984-12-03
7THREE SPAN OIL & GAS, INC.15,0001983-07-19
6THREE SPAN OIL & GAS, INC.15,0001982-12-01
3THREE SPAN OIL & GAS, INC.15,0001981-12-31
4THREE SPAN OIL & GAS, INC.15,0001981-12-31
1THREE SPAN OIL & GAS, INC.15,0001980-11-14
2THREE SPAN OIL & GAS, INC.15,0001980-11-14