HEIDELBERG

Oil // district 10 // lease#28565

op: PRIME OPERATING COMPANY

cum_oil

273k BBL

cum_gas

0 MCF

wells

8

production

1993-01 — 2026-03

peak_month

2007-10

-- production_history

cum_oil: 273,422 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,100 BBL/mo

Di (annual)

7.8%

b-factor

0.0

EUR

165,174 BBL

R-squared

0.816

type

exponential

-- wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4BRAZOS PETROLEUM CO.18,7001985-04-19
5BRAZOS PETROLEUM CO.19,8001985-04-19
3BRAZOS PETROLEUM CO.28,7001985-04-15
6BRAZOS PETROLEUM CO.19,8001985-01-11
7BRAZOS PETROLEUM CO.19,8001984-05-31
8BRAZOS PETROLEUM CO.18,5001984-05-31
2BRAZOS PETROLEUM CO.18,7001984-02-21
1BRAZOS PETROLEUM CO.19,8001983-09-21
EOF // data source: Texas Railroad Commission // 2026