Marathon Oil Company vs Texas Secondary Oil

Side-by-side comparison of two oil and gas operators in OK,TX and TX. Drawn from public well data and state-regulator production filings.

Important — Public-Data Disclaimer. The information shown on this page is sourced exclusively from publicly available oil and gas regulatory records (Texas Railroad Commission, Oklahoma Corporation Commission, and aggregated public well data). Valor is presenting these public records side-by-side as an informational convenience only.

Marathon Oil Company

OK,TX · 5,601 wells on file

Texas Secondary Oil

TX · 875 wells on file

Side-by-Side Statistics

MetricMarathon Oil CompanyTexas Secondary Oil
Total wells5,601875
Wells producing (any time)3,702747
Permits filed (last 24 months)1290
Most recent permit date2026-04-232020-09-08
Most recent spud date2026-04-172019-12-10
Average lateral length (ft)6,110370
Top formationAustin ChalkAustin Chalk
Top countyKarnesMedina
States operating inOK,TXTX
Last-12mo oil production (BBL)6,838,2544,990
Last-12mo gas production (Mcf)23,576,9200

Shared Territory

Both operators have wells in these counties:

AtascosaLive Oak

Both operators target these formations / plays:

Austin ChalkOlmos

Per-Operator Top Counties & Formations

Marathon Oil Company

Counties: Karnes (2,129) · Atascosa (594) · Live Oak (367) · De Witt (296) · Gonzales (236)

Formations: Austin Chalk (1,605) · Eagle Ford (619) · Stuart City-Edwards (510) · Olmos (284) · Del Rio (187)

Texas Secondary Oil

Counties: Medina (724) · Bexar (54) · Live Oak (30) · Edwards (15) · Atascosa (12)

Formations: Austin Chalk (771) · Olmos (49) · Ozona Canyon (10) · Ouachita Folded Belt (4) · Thirty-One Carbonate-Chert (2)

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