MILLICAN REEF UNIT

Oil // district 9 // lease#10733

op: GUNGOLL, CARL E. EXPLORATION LLC

fields: MILLICAN

cum_oil

128k BBL

cum_gas

0 MCF

wells

7

production

1993-01 — 2026-03

peak_month

2009-04

-- production_history

cum_oil: 127,536 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

404 BBL/mo

Di (annual)

6.2%

b-factor

0.0

EUR

74,283 BBL

R-squared

0.339

type

exponential

-- wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3 SPEARSON SIBERT OIL CO. OF TEXAS27,5002023-03-24
6PABRAXAS PETROLEUM CORPORATION26,6002009-06-17
2AABRAXAS PETROLEUM CORPORATION16,9002008-10-21
4PEARSON SIBERT OIL CO. OF TEXAS16,1251984-10-22
2 SPEARSON SIBERT OIL CO. OF TEXAS16,3001984-02-23
1P42-081-30140--------
3 P42-081-30170--------
EOF // multi-state drilling data platform // 2026