HALFMANN 36

Oil // district 10 // lease#44451

op: OVINTIV USA INC.

cum_oil

92k BBL

cum_gas

0 MCF

wells

5

production

2013-10 — 2026-03

peak_month

2014-06

-- production_history

cum_oil: 91,827 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,730 BBL/mo

Di (annual)

46.0%

b-factor

0.1

EUR

79,103 BBL

R-squared

0.859

type

hyperbolic

-- wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DEXXON CORP.210,2002014-05-08
8ATHLON HOLDINGS LP110,2502014-04-04
7ATHLON FE OPERATING LLC110,3002014-01-06
6ATHLON FE OPERATING LLC110,2002013-09-04
1ATHLON FE OPERATING LLC110,3002013-07-01
EOF // data source: Texas Railroad Commission // 2026