BROWNLEE 128

Oil // district 14 // lease#8629

op: HIGHMARK ENERGY OPERATING, LLC

cum_oil

156k BBL

cum_gas

0 MCF

wells

2

production

2012-06 — 2026-03

peak_month

2012-07

-- production_history

cum_oil: 155,839 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,290 BBL/mo

Di (annual)

34.4%

b-factor

0.3

EUR

112,393 BBL

R-squared

0.493

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HEOG RESOURCES, INC.19,0002011-04-29
3HEOG RESOURCES, INC.19,0002011-03-08
EOF // multi-state drilling data platform // 2026