< leases

HOLT SAND UNIT

Oil · District 09 · Lease #12478

Operator: WAKO OIL CO. LLC

Fields: MONTAGUE COUNTY REGULAR

Cum Oil

345k BBL

Cum Gas

545 MCF

casinghead

Wells

63

Production

1993-01 — 2026-04

Peak Month

2003-11

Production History

Cum Oil: 345,269 BBL Cum Gas: 545 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

8,331 BBL/mo

Di (annual)

160.0%

b-factor

1.0

EUR

274,617 BBL

R-squared

0.735

type

hyperbolic

Operator History (from monthly production reports)

2012-12 — 2026-07 WAKO OIL CO. LLC 164 mo
2010-12 — 2012-11 BRAHMAN OPERATING, L.L.C. 24 mo
2005-03 — 2010-11 SEEL-MAC OIL & GAS LLC 69 mo
2002-02 — 2005-02 SEELYE, WILLIAM L. 37 mo
1993-01 — 2002-01 O-RRELL OIL COMPANY 109 mo

Wells (63)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
R 142-337-34527WAKO OIL CO. LLC12,0002011-01-20
S 4142-337-33619WAKO OIL CO. LLC12,0002004-03-30
S 3842-337-33608WAKO OIL CO. LLC12,0002004-02-17
S 3942-337-33609WAKO OIL CO. LLC12,0002004-02-17
S 3742-337-33607WAKO OIL CO. LLC12,0002004-02-11
S 3442-337-33603WAKO OIL CO. LLC22,0002003-12-19
S 3542-337-33602WAKO OIL CO. LLC22,0002003-12-18
S 3642-337-33601WAKO OIL CO. LLC12,0002003-12-18
S 3342-337-33588WAKO OIL CO. LLC12,0002003-11-14
S 3242-337-33585WAKO OIL CO. LLC12,0002003-10-23
S 3142-337-33582WAKO OIL CO. LLC12,0002003-10-15
S 3042-337-33581WAKO OIL CO. LLC12,0002003-10-09
S 2942-337-33571WAKO OIL CO. LLC12,0002003-09-10
S 2842-337-33566WAKO OIL CO. LLC12,0002003-07-09
S 2442-337-33559WAKO OIL CO. LLC12,0002003-06-11
S 2342-337-33557WAKO OIL CO. LLC12,0002003-06-04
S 2142-337-33548WAKO OIL CO. LLC22,0002003-05-23
S 2242-337-33549WAKO OIL CO. LLC12,0002003-05-14
S 2042-337-33546WAKO OIL CO. LLC22,0002003-05-12
S 1442-337-33509WAKO OIL CO. LLC12,0002002-11-13
S 1542-337-33510WAKO OIL CO. LLC12,0002002-11-13
S 1642-337-33511WAKO OIL CO. LLC12,0002002-11-13
S 1742-337-33512WAKO OIL CO. LLC12,0002002-11-13
S 1842-337-33513WAKO OIL CO. LLC12,0002002-11-13
S 1142-337-33482WAKO OIL CO. LLC12,0002002-08-07
S 1242-337-33483WAKO OIL CO. LLC12,0002002-08-07
S 1342-337-33484WAKO OIL CO. LLC12,0002002-08-07
S 1042-337-33471WAKO OIL CO. LLC13,2002002-06-05
S 942-337-33465WAKO OIL CO. LLC12,0002002-05-20
S 542-337-33461WAKO OIL CO. LLC12,0002002-05-08
S 642-337-33460WAKO OIL CO. LLC12,0002002-05-08
S 742-337-33459WAKO OIL CO. LLC12,0002002-05-08
S 842-337-33458WAKO OIL CO. LLC12,0002002-05-08
S 342-337-33454WAKO OIL CO. LLC12,0002002-04-08
S 442-337-33455WAKO OIL CO. LLC12,0002002-04-08
S 142-337-33448WAKO OIL CO. LLC12,0002002-03-07
A20042-337-31525WAKO OIL CO. LLC21,8001997-10-15
20042-337-31520WAKO OIL CO. LLC21,8001990-07-11
10442-337-31532WAKO OIL CO. LLC21,8001989-07-13
10542-337-31694WAKO OIL CO. LLC11,8001981-07-21
10642-337-31714WAKO OIL CO. LLC11,8001981-07-21
10142-337-31534WAKO OIL CO. LLC11,8001980-12-23
10342-337-31533WAKO OIL CO. LLC11,8001980-12-23
A10142-337-31531WAKO OIL CO. LLC11,8001980-12-23
30142-337-02934WAKO OIL CO. LLC11,8001980-12-17
30242-337-31554WAKO OIL CO. LLC11,8001980-12-17
30342-337-31553WAKO OIL CO. LLC11,8001980-12-17
30442-337-31544WAKO OIL CO. LLC11,8001980-12-17
30542-337-31552WAKO OIL CO. LLC11,8001980-12-17
30642-337-31551WAKO OIL CO. LLC11,8001980-12-17
30742-337-31550WAKO OIL CO. LLC11,8001980-12-17
A30142-337-31549WAKO OIL CO. LLC11,8001980-12-17
A30242-337-31548WAKO OIL CO. LLC11,8001980-12-17
A30342-337-31547WAKO OIL CO. LLC11,8001980-12-17
A30442-337-31546WAKO OIL CO. LLC11,8001980-12-17
A30542-337-31545WAKO OIL CO. LLC11,8001980-12-17
A30742-337-31543WAKO OIL CO. LLC11,8001980-12-17
A30642-337-31542WAKO OIL CO. LLC11,8001980-12-16
5 B42-337-31037WAKO OIL CO. LLC22,0771980-10-16
142-337-31026WAKO OIL CO. LLC13,1501977-10-27
3342-337-82035WAKO OIL CO. LLC------
3442-337-03932WAKO OIL CO. LLC------
742-337-82019WAKO OIL CO. LLC------