LA BRISA RANCH PARTNERS 91

Oil · District 04 · Lease #315

Operator: WRIGHT BROTHERS ENERGY, INC.

Fields: BOYLE

Cum Oil

230k BBL

Cum Gas

1.0M MCF

casinghead

Wells

12

Production

1993-01 — 2026-03

Peak Month

2011-12

Production History

Cum Oil: 230,356 BBL Cum Gas: 1,034,667 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,713 BBL/mo

Di (annual)

25.7%

b-factor

0.2

EUR

215,171 BBL

R-squared

0.902

type

hyperbolic

Operator History (from monthly production reports)

2009-06 — 2026-07 TRAP ROCK OIL, LTD. 206 mo
1995-03 — 2009-05 WRIGHT BROTHERS ENERGY, INC. 171 mo
1993-01 — 1995-02 J. & M. WELL SERVICE, INC. 26 mo

Wells (12)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
K 2TRAP ROCK OIL, LTD.26,0002014-05-22
M 9TRAP ROCK OIL, LTD.14,7002012-06-05
M 8TRAP ROCK OIL, LTD.14,7002012-05-10
G 3RTRAP ROCK OIL, LTD.15,0002011-10-13
M 4RTRAP ROCK OIL, LTD.14,5002011-10-07
M 5TRAP ROCK OIL, LTD.14,5452010-09-09
1RTRAP ROCK OIL, LTD.34,5112010-03-31
M 3TRAP ROCK OIL, LTD.14,4562010-02-25
142-427-03451TRAP ROCK OIL, LTD.------
B 142-427-03452TRAP ROCK OIL, LTD.------
B 242-427-03455TRAP ROCK OIL, LTD.------
C 142-427-03451TRAP ROCK OIL, LTD.------