EL GATO GRANDE

Oil · District 8A · Lease #67819

Operator: RISING STAR ENERGY, L.L.C.

Fields: O'DONNELL, N. (MISSISSIPPIAN)

Cum Oil

102k BBL

Cum Gas

60k MCF

casinghead

Wells

1

Production

1997-09 — 2026-04

Peak Month

1998-05

Production History

Cum Oil: 102,165 BBL Cum Gas: 60,044 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,471 BBL/mo

Di (annual)

39.0%

b-factor

0.6

EUR

92,465 BBL

R-squared

0.648

type

hyperbolic

Operator History (from monthly production reports)

2003-09 — 2026-07 REATTA ENERGY, INC. 275 mo

2000-09 — 2003-08 MANTI OPERATING COMPANY 36 mo

1997-10 — 2000-08 MANTI OPERATING/RISING STAR 35 mo

1997-09 — 1997-09 RISING STAR ENERGY, L.L.C. 1 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-305-30433	REATTA ENERGY, INC.	2	9,400	1997-06-27