INVESTORS ROYALTY CO. "A"

Oil · District 8A · Lease #61721

Operator: SABINAL ENERGY OPERATING, LLC

Cum Oil

6.4M BBL

Cum Gas

1.4M MCF

casinghead

Wells

72

Production

1993-01 — 2026-04

Peak Month

2001-07

Production History

Cum Oil: 6,429,278 BBL Cum Gas: 1,379,328 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

39,504 BBL/mo

Di (annual)

7.5%

b-factor

0.0

EUR

6,167,372 BBL

R-squared

0.899

type

exponential

Operator History (from monthly production reports)

2025-09 — 2026-07 BCE-MACH III LLC 11 mo
2017-10 — 2025-08 SABINAL ENERGY OPERATING, LLC 95 mo
1993-01 — 2017-09 CHEVRON U. S. A. INC. 297 mo

Wells (72)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
36BCE-MACH III LLC211,0002021-10-06
36HBCE-MACH III LLC211,0002021-10-06
45BCE-MACH III LLC28,5002007-09-07
45HBCE-MACH III LLC28,5002007-09-07
52BCE-MACH III LLC28,2002007-09-06
52HBCE-MACH III LLC28,2002007-09-06
34BCE-MACH III LLC310,1002006-07-14
34HBCE-MACH III LLC310,1002006-07-14
40BCE-MACH III LLC311,0002006-07-14
40HBCE-MACH III LLC311,0002006-07-14
43BCE-MACH III LLC211,0002006-07-14
43HBCE-MACH III LLC211,0002006-07-14
49BCE-MACH III LLC311,0002006-07-14
49HBCE-MACH III LLC311,0002006-07-14
44BCE-MACH III LLC39,0002003-11-18
44HBCE-MACH III LLC39,0002003-11-18
38BCE-MACH III LLC29,0002003-09-16
8BCE-MACH III LLC19,0002003-09-16
8WHBCE-MACH III LLC19,0002003-09-16
51BCE-MACH III LLC18,2002001-02-21
50BCE-MACH III LLC18,2002001-01-26
48BCE-MACH III LLC18,2002001-01-11
46BCE-MACH III LLC18,2002000-12-14
47BCE-MACH III LLC38,2002000-12-14
42BCE-MACH III LLC18,2001999-12-01
41BCE-MACH III LLC18,2001999-10-11
39BCE-MACH III LLC18,9001998-01-27
35BCE-MACH III LLC18,9001995-09-18
37BCE-MACH III LLC212,0001995-02-22
33BCE-MACH III LLC18,5001994-02-01
32BCE-MACH III LLC18,5001993-10-19
31BCE-MACH III LLC18,5001992-11-20
30WBCE-MACH III LLC18,1751985-06-25
1WSBCE-MACH III LLC15,9001980-02-06
29WBCE-MACH III LLC18,2001979-03-09
23WBCE-MACH III LLC18,2001978-09-20
24WBCE-MACH III LLC18,2001978-09-20
25WBCE-MACH III LLC18,2001978-09-20
26WBCE-MACH III LLC18,2001978-09-20
28WBCE-MACH III LLC18,2001978-09-20
27WBCE-MACH III LLC18,2001978-09-07
22WBCE-MACH III LLC18,2001978-08-21
20WBCE-MACH III LLC18,2001978-06-13
19WBCE-MACH III LLC18,2001978-05-16
21WBCE-MACH III LLC18,2001978-05-16
17WBCE-MACH III LLC18,2001977-12-30
18WBCE-MACH III LLC18,2001977-12-30
142-445-30184BCE-MACH III LLC------
1042-445-30224BCE-MACH III LLC------
10W42-445-30224BCE-MACH III LLC------
1142-445-30226BCE-MACH III LLC------
11W42-445-30226BCE-MACH III LLC------
1242-445-30227BCE-MACH III LLC------
1342-445-30228BCE-MACH III LLC------
1442-445-30266BCE-MACH III LLC------
14W42-445-30266BCE-MACH III LLC------
1542-445-30268BCE-MACH III LLC------
15W42-445-30268BCE-MACH III LLC------
1642-445-30277BCE-MACH III LLC------
1W42-445-30184BCE-MACH III LLC------
242-445-30189BCE-MACH III LLC------
2W42-445-30189BCE-MACH III LLC------
342-445-30190BCE-MACH III LLC------
442-445-30192BCE-MACH III LLC------
4W42-445-30192BCE-MACH III LLC------
542-445-30197BCE-MACH III LLC------
5W42-445-30197BCE-MACH III LLC------
642-445-30198BCE-MACH III LLC------
6W42-445-30198BCE-MACH III LLC------
742-445-30219BCE-MACH III LLC------
942-445-30212BCE-MACH III LLC------
9W42-445-30212BCE-MACH III LLC------