BRUMLEY "A"

Oil // district 11 // lease#69139

op: PIONEER EXPLORATION, LTD.

cum_oil

246k BBL

cum_gas

0 MCF

wells

13

production

2007-08 — 2026-03

peak_month

2008-05

-- production_history

cum_oil: 246,031 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

4,998 BBL/mo

Di (annual)

35.5%

b-factor

0.2

EUR

210,960 BBL

R-squared

0.852

type

hyperbolic

-- wells (13)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
28PIONEER EXPLORATION, LLC13,9752008-08-21
27PIONEER EXPLORATION, LLC13,9752008-07-16
26PIONEER EXPLORATION, LLC13,9752008-07-02
25PIONEER EXPLORATION, LLC13,9752008-06-20
23PIONEER EXPLORATION, LLC13,9752008-04-22
20PIONEER EXPLORATION, LTD.13,9752008-01-18
21PIONEER EXPLORATION, LTD.13,9752008-01-14
19PIONEER EXPLORATION, LTD.13,9752008-01-10
22PIONEER EXPLORATION, LTD.13,9752008-01-10
18PIONEER EXPLORATION, LTD.13,9752007-11-06
17PIONEER EXPLORATION, LTD.13,9752007-03-27
16PIONEER EXPLORATION, LTD.23,9752007-03-13
15PIONEER EXPLORATION, LTD.13,9752007-02-28
EOF // data source: Texas Railroad Commission // 2026