HOWARD HEIRS

Oil // district 13 // lease#25549

op: DENNIS, DON

cum_oil

98k BBL

cum_gas

0 MCF

wells

10

production

1993-01 — 2026-03

peak_month

2001-03

-- production_history

cum_oil: 97,798 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

938 BBL/mo

Di (annual)

43.0%

b-factor

0.6

EUR

54,085 BBL

R-squared

0.929

type

hyperbolic

-- wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11DENNIS & DAVIS OIL CO.12,0002000-10-05
10DENNIS, DON11,0001993-12-06
9DENNIS, DON11,0001993-12-06
8DENNIS, DON11,0001988-03-28
6DENNIS, DON11,0001987-10-08
5DENNIS, DON11,0501987-08-11
4DENNIS, DON19501986-01-29
3DENNIS, DON19501985-11-21
2DENNIS, DON19501985-10-21
1DENNIS, DON11,6001985-06-24
EOF // multi-state drilling data platform // 2026