ADA J. HIGHTOWER

Oil // district 5 // lease#4485

op: HIGHMARK ENERGY OPERATING, LLC

cum_oil

6k BBL

cum_gas

0 MCF

wells

1

production

2024-10 — 2026-03

peak_month

2024-11

-- production_history

cum_oil: 6,112 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

866 BBL/mo

Di (annual)

181.5%

b-factor

0.0

EUR

5,730 BBL

R-squared

0.964

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HUNT OIL COMPANY211,5002024-11-04
EOF // data source: Texas Railroad Commission // 2026