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Reported operator record · ECMC 10670

Bison IV Operating LLC wells in Weld County, Colorado

RoyaltyBook’s current release contains 14 source-linked producing well profiles reported under the exact source name BISON IV OPERATING LLC. They span 8 PLSS land records, 7 fields, and spud dates from June 23, 2010 through November 9, 2018.

Current bounded release

14 verified producing well profiles

The largest field grouping is HEREFORD with 5 profiles. These published rows do not carry a named municipality label; their exact PLSS land keys remain available below.

ECMC number
10670
Land keys
8
Fields
7
Latest row status
May 1, 2026
This is a public-record grouping—not a corporate profile. The source name and operator number identify the rows in this release. They do not establish current corporate ownership, the current royalty payer, mineral title, lease participation, or whether money is owed.

Published subset · latest complete calendar year

2025 production reported for these 14 profiles

Oil produced
50,439BBL
Gas produced
60,611MCF
Water produced
88,872BBL

These totals sum only the well rows published on this page. They are not company-wide totals, revenue, royalty amounts, sales proceeds, or a forecast. Every underlying well profile links to its exact ECMC annual production result.

Where the records appear

Field, community, and land footprint

These counts describe RoyaltyBook’s release—not acreage ownership or a legal operating area.

Fields in the published rows

  • HEREFORD5 wells5 of 14
  • DJ HORIZONTAL NIOBRARA3 wells3 of 14
  • GROVER2 wells2 of 14
  • DJ HORIZONTAL CARL-CODL-FTHYS1 well1 of 14
  • DJ HORIZONTAL CODELL1 well1 of 14
  • WATTENBERG1 well1 of 14
  • WILDCAT1 well1 of 14

Named municipality labels

No named municipality appears in these published rows. Municipality labels are optional context, not a legal or ownership boundary.

PLSS land records

Every land link preserves the exact section-township-range carried by the well rows and opens the state order-candidate path.

Production context

Highest 2025 reported oil volumes in this subset

Ranking is by published oil volume, with gas used only to break a tie. It is not a valuation or royalty ranking.

  1. 01
    215-2920H Randall Creek05-123-44979 · DJ HORIZONTAL NIOBRARA · 11,491 BBL oil · 4,171 MCF gas
  2. 02
    23-0362B Lion Creek05-123-47399 · HEREFORD · 6,188 BBL oil · 7,774 MCF gas
  3. 03
    16-6401B Critter Creek05-123-47293 · HEREFORD · 5,906 BBL oil · 12,246 MCF gas
  4. 04
    503-2920H Randall Creek05-123-42466 · DJ HORIZONTAL CODELL · 5,504 BBL oil · 2,064 MCF gas
  5. 05
    23-0164B Lion Creek05-123-47385 · HEREFORD · 5,480 BBL oil · 8,427 MCF gas

Complete page inventory

All 14 Bison IV Operating LLC well profiles in this release

Use the API number—not the well name alone—when comparing a statement, division order, lease file, or official record.

If this name appears on your paperwork

Match the identifier, then follow the land.

  1. Confirm the API number. A similar well name is not enough. Match the full API on the statement or official record.
  2. Check the operator number and date. This page reports ECMC 10670 from a snapshot retrieved August 9, 2026. Company and payment relationships can change.
  3. Open the land record. Carry the exact section-township-range into the county recorder and ECMC order search without assuming a same-section result proves participation.
  4. Reconcile the payment record. Compare the lease, division order, decimal, production month, deductions, and current official owner-relations contact.

Check a Weld County address Review a royalty check

Common questions

How to interpret this operator page

What does Bison IV Operating LLC mean on a RoyaltyBook well record?

It is the exact operator name attached to that published ECMC-derived well row in RoyaltyBook release 2026.08.09-weld-500, paired with ECMC operator number 10670.

Does this show every Bison IV Operating LLC well in Colorado?

No. This page covers 14 qualifying producing-well profiles in RoyaltyBook’s bounded Weld County release, not the company’s complete Colorado or national inventory.

Does an operator listing prove Bison IV Operating LLC owes me royalties?

No. Operator identity, mineral title, lease participation, division-order status, and the entity issuing a payment can be different questions. Match the API number, property record, lease, and current payment contact before drawing a conclusion.

Found a source conflict? Send the operator name, API number, and cited source. Material corrections remain visible in the ledger.