MADJACK 522

Oil // district 11 // lease#70385

op: STEWARD ENERGY II, LLC

cum_oil

1.9M BBL

cum_gas

0 MCF

wells

6

production

2014-11 — 2026-03

peak_month

2021-01

-- production_history

cum_oil: 1,942,650 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

30,313 BBL/mo

Di (annual)

58.7%

b-factor

2.0

EUR

4,170,038 BBL

R-squared

0.610

type

hyperbolic

-- wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HSTEWARD ENERGY II, LLC25,6002023-03-17
6HSTEWARD ENERGY II, LLC25,6002019-11-08
5HSTEWARD ENERGY II, LLC35,6002019-11-07
3HSTEWARD ENERGY II, LLC25,6002017-11-20
4HSTEWARD ENERGY II, LLC25,6002017-11-20
1HMANZANO, LLC25,5002014-08-29
EOF // data source: Texas Railroad Commission // 2026