SHANNON WATERFLOOD UNIT

Oil · District 7C · Lease #17487

Operator: SUNDOWN ENERGY LP

Cum Oil

50k BBL

Cum Gas

0 MCF

Wells

74

Production

2011-06 — 2026-04

Peak Month

2019-05

Production History

Cum Oil: 50,393 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

615 BBL/mo

Di (annual)

12.9%

b-factor

0.0

EUR

57,186 BBL

R-squared

0.446

type

exponential

Operator History (from monthly production reports)

2017-07 — 2026-07 CLARK OIL CO. 109 mo
2011-06 — 2017-06 SUNDOWN ENERGY LP 73 mo

Wells (74)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
B 6CLARK OIL CO.12,5282005-07-25
B 1CLARK OIL CO.12,6002004-08-12
C 4CLARK OIL CO.12,6002004-08-12
F 1CLARK OIL CO.12,6002004-08-12
M 9CLARK OIL CO.12,6002004-08-12
K 10CLARK OIL CO.12,6001990-06-08
K 16CLARK OIL CO.12,6001990-06-08
K 17CLARK OIL CO.12,6001990-06-08
L 5CLARK OIL CO.12,6001988-01-14
A 12CLARK OIL CO.12,5001980-10-01
A 11CLARK OIL CO.12,5001980-09-09
A 8CLARK OIL CO.12,5001980-09-04
A 10CLARK OIL CO.12,5001980-09-03
A 7CLARK OIL CO.12,5001980-03-26
A 5CLARK OIL CO.12,5001980-03-24
A 6CLARK OIL CO.12,5001979-11-16
A 4CLARK OIL CO.12,5001979-11-14
D 5CLARK OIL CO.12,5001978-11-22
A 142-105-02018CLARK OIL CO.------
A 1342-105-01942CLARK OIL CO.------
A 242-105-01950CLARK OIL CO.------
A 342-105-03406CLARK OIL CO.------
A 942-105-03402CLARK OIL CO.------
B 242-105-03225CLARK OIL CO.------
B 342-105-03228CLARK OIL CO.------
B 442-105-03230CLARK OIL CO.------
B 542-105-03231CLARK OIL CO.------
B 742-105-03233CLARK OIL CO.------
C 142-105-02760CLARK OIL CO.------
C 242-105-02767CLARK OIL CO.------
C 342-105-02772CLARK OIL CO.------
C 542-105-02781CLARK OIL CO.------
C 642-105-02783CLARK OIL CO.------
C 742-105-02786CLARK OIL CO.------
D 142-105-80423CLARK OIL CO.------
D 242-105-03403CLARK OIL CO.------
D 342-105-03404CLARK OIL CO.------
D 442-105-03405CLARK OIL CO.------
E 142-105-01622CLARK OIL CO.------
E 242-105-01624CLARK OIL CO.------
E 342-105-01625CLARK OIL CO.------
E 442-105-10247CLARK OIL CO.------
E 542-105-01626CLARK OIL CO.------
E 642-105-10248CLARK OIL CO.------
E 742-105-10249CLARK OIL CO.------
E 842-105-10250CLARK OIL CO.------
F 1042-105-00337CLARK OIL CO.------
F 242-105-02839CLARK OIL CO.------
F 442-105-02841CLARK OIL CO.------
F 542-105-02842CLARK OIL CO.------
F 842-105-02845CLARK OIL CO.------
G 242-105-00748CLARK OIL CO.------
G 342-105-20041CLARK OIL CO.------
G 442-105-00644CLARK OIL CO.------
G 642-105-00794CLARK OIL CO.------
H 142-105-00045CLARK OIL CO.------
H 242-105-00046CLARK OIL CO.------
H 342-105-00047CLARK OIL CO.------
H 442-105-00048CLARK OIL CO.------
J 142-105-02770CLARK OIL CO.------
J 242-105-10316CLARK OIL CO.------
K 142-105-01830CLARK OIL CO.------
K 242-105-02769CLARK OIL CO.------
K 342-105-02774CLARK OIL CO.------
K 442-105-02778CLARK OIL CO.------
K 542-105-02780CLARK OIL CO.------
K 842-105-10317CLARK OIL CO.------
L 142-105-02761CLARK OIL CO.------
L 242-105-02768CLARK OIL CO.------
L 342-105-02773CLARK OIL CO.------
L 442-105-02777CLARK OIL CO.------
M 1042-105-02844CLARK OIL CO.------
M 1142-105-02846CLARK OIL CO.------
M 842-105-02840CLARK OIL CO.------