< leases

UNIVERSITY 10 A

Oil · District 08 · Lease #27613

Operator: STAR OF TEXAS ENERGY SRVS, INC.

Fields: CARDINAL (QUEEN, W. )

Cum Oil

1k BBL

Cum Gas

6k MCF

casinghead

Wells

2

Production

1993-01 — 2007-08

Peak Month

1998-04

Production History

Cum Oil: 1,036 BBL Cum Gas: 5,958 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

28 BBL/mo

Di (annual)

35.4%

b-factor

0.0

EUR

905 BBL

R-squared

0.409

type

exponential

Operator History (from monthly production reports)

2009-11 — 2026-07 AAA OIL TRUST 201 mo
2009-07 — 2009-10 SKYBRIDGE ENERGY LLC 4 mo
2009-03 — 2009-06 ROYALCO OIL & GAS CORPORATION 4 mo
2008-10 — 2009-02 STAR OF TEXAS ENERGY SRVS, INC. 5 mo
2006-01 — 2008-09 LEONARD BROTHERS OPERATING CO. 33 mo
2003-06 — 2005-12 JAY MANAGEMENT COMPANY, LLC 31 mo
1993-01 — 2003-05 CARDINAL SHARES, INC. 125 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9B42-371-32492LEONARD BROTHERS OPERATING CO.22,2061979-08-14
142-371-20384AAA OIL TRUST11,6801979-06-26