PARKEY "B-13"

Oil · District 09 · Lease #27682

Operator: ROGERS DRILLING CO.

Cum Oil

116k BBL

Cum Gas

21 MCF

casinghead

Wells

9

Production

1993-01 — 2026-04

Peak Month

1994-02

Production History

Cum Oil: 115,645 BBL Cum Gas: 21 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,450 BBL/mo

Di (annual)

23.1%

b-factor

0.2

EUR

93,311 BBL

R-squared

0.781

type

hyperbolic

Operator History (from monthly production reports)

2025-06 — 2026-07 BULWARK OIL & GAS, LLC 14 mo
2025-05 — 2025-05 MASH OILFIELD SERVICES, LP 1 mo
2024-04 — 2025-04 BULWARK OIL & GAS, LLC 13 mo
2016-03 — 2024-03 MASH OILFIELD SERVICES, LP 97 mo
2015-11 — 2016-02 KRAMER OPERATING, LLC 4 mo
2013-10 — 2015-10 MEMORIAL PRODUCTION OPER. LLC 25 mo
2011-10 — 2013-09 BOAZ ENERGY, LLC 24 mo
2008-07 — 2011-09 PANAMERICAN OPERATING INC 39 mo
1993-01 — 2008-06 ROGERS DRILLING CO. 186 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11BULWARK OIL & GAS, LLC15,4002007-06-06
10BULWARK OIL & GAS, LLC26,0001998-11-10
7BULWARK OIL & GAS, LLC25,6001998-01-16
8BULWARK OIL & GAS, LLC15,6001993-12-23
9BULWARK OIL & GAS, LLC15,6001993-12-23
5BULWARK OIL & GAS, LLC15,6001993-10-29
6BULWARK OIL & GAS, LLC15,6001993-10-25
2BULWARK OIL & GAS, LLC15,6001990-01-04
1BULWARK OIL & GAS, LLC15,6001989-12-15