4K BLACK HILLS UNIT A

Oil // district 1 // lease#21645

op: PILLAR EFS, LLC

cum_oil

80k BBL

cum_gas

0 MCF

wells

1

production

2024-12 — 2026-03

peak_month

2025-01

-- production_history

cum_oil: 79,819 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

15,216 BBL/mo

Di (annual)

927.2%

b-factor

1.6

EUR

359,588 BBL

R-squared

0.972

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HPILLAR EFS, LLC19,0002023-08-28
EOF // multi-state drilling data platform // 2026