HELLEN, DANA

Oil // district 4 // lease#11599

op: PRIME OPERATING COMPANY

cum_oil

128k BBL

cum_gas

0 MCF

wells

10

production

1993-01 — 2026-03

peak_month

1993-01

-- production_history

cum_oil: 127,986 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,997 BBL/mo

Di (annual)

30.5%

b-factor

0.1

EUR

130,835 BBL

R-squared

0.963

type

hyperbolic

-- wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10PRIME OPERATING COMPANY26,0002011-11-04
2PRIME OPERATING COMPANY25,5002000-05-10
9LOBO RESOURCES, LTD.26,0001995-08-10
8LOBO RESOURCES, LTD.26,0001995-04-18
7LOBO RESOURCES, LTD.26,0001990-06-07
6LOBO RESOURCES, LTD.16,0001989-06-09
5LOBO RESOURCES, LTD.16,0001989-05-10
3LOBO RESOURCES, LTD.16,0001989-04-11
4LOBO RESOURCES, LTD.16,0001989-04-11
1LOBO RESOURCES, LTD.15,5001989-02-15
EOF // data source: Texas Railroad Commission // 2026