THORNTON

Oil · District 7B · Lease #27211

Operator: QUANTUM INVESTMENTS

Cum Oil

10k BBL

Cum Gas

4 MCF

casinghead

Wells

1

Production

1994-06 — 2009-10

Peak Month

2004-05

Production History

Cum Oil: 9,568 BBL Cum Gas: 4 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

248 BBL/mo

Di (annual)

121.0%

b-factor

0.4

EUR

3,957 BBL

R-squared

0.594

type

hyperbolic

Operator History (from monthly production reports)

2008-12 — 2026-07 QUANTUM INVESTMENTS 212 mo
1994-06 — 2008-11 GRAY OIL & GAS INC. 174 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2ROBERTSON RESOURCES INC.12,0001982-01-25