Cog Operating LLC

The state's monthly reports list 1,673 leases under Cog Operating LLC at some point. Of those, 181 are reported by another operator today (82 by U.S. Energy Development Corp, 46 by Scout Energy Management LLC, 21 by Firebird Energy II LLC, 32 by others); 1,248 still report production under Cog Operating LLC; 117 stopped reporting while it was the operator.

Counted from the operator named on each lease’s monthly production report, Jan 2020 to Aug 2026. A date is the month the reports changed, not the day of a sale. A lease can move without the company being sold, and the company that pays you is not always the operator.

Check it against your own leaseSorting out a family estate? Start here

Source: Railroad Commission of Texas, production data query, operator on each monthly report, as of August 1, 2026.

The Railroad Commission lists this company as an operator, and the state's records list it as a purchaser or gatherer.

• Railroad Commission P-5ActiveLast filing received June 2, 2026RRC P-5 file
• Right to do business in TexasActivePossible match by nameComptroller franchise tax file
• Secretary of StateActiveSince July 12, 2004Comptroller franchise tax file
• Registered in TexasJuly 12, 2004Comptroller franchise tax file

Name on file

COG OPERATING LLC

Operator number (P-5)

166150

Organization type

Limited liability company (code not in the RRC's 2014 layout; inferred from the names)

Location

Midland, TX

Mailing city

Midland, TX

Activities filed

Gas Operator, Oil Operator

Record built

August 17, 2004

Refiling required

Yes

Source: Railroad Commission of Texas, P-5 Organization Report data set, as of October 22, 2026.

Hold the letter, division order or offer next to these lines. Company names in oil and gas are often one word apart, and a close name can be a different company.

• The exact nameCOG OPERATING LLCEvery word, with LLC, LP, Inc. or Corp. as printed here.
• The state operator number166150Not every letter prints it. A division order usually does.
• The city it mails fromMidland, TX 79701A return address in another city is common for a payment office. Ask if it is not one you can find.
• The phone on file(432) 683-7443Call the number on file, not only the one in the letter, before you sign anything.
• Its standing todayP-5 active; right to do business in Texas: active

The name is close but not the same: search itHave the letter read

This record matched the company by name and place, not by a number both files share. Check it before relying on it.

Legal name

COG OPERATING LLC

Taxpayer number

16114698547

Entity type

Foreign limited liability company

Secretary of State file number

0800364009

Secretary of State status

Active (July 12, 2004)

Right to transact business in Texas

Active

Formed

July 12, 2004

Formed in

Outside Texas (the file does not say where)

Mailing city

Bartlesville, OK

Source: Texas Comptroller, franchise tax permit holder file (data.texas.gov), as of November 7, 2026.

Look it up yourself: Secretary of State business filings (search for file number 0800364009), Comptroller account status.

Copy or print one and fill the blanks. Each asks for one thing and gives the company what it needs to find your account. The address is the owner relations desk we checked.

[Your name]
[Your mailing address]
[Date]

ConocoPhillips
Attn: U.S. Owner Relations
925 N. Eldridge Parkway
Houston, TX 77079-2703

Re: Change of address, owner number [your owner number]

To whom it may concern:

Please update the mailing address on my owner account.

Owner name as it appears on your records: [name on the check stub]
Owner number: [your owner number]
Old address: [old address]
New address: [new address]
Phone or email: [how to reach you]

If you need a form of your own, a W-9 or a signature witnessed or notarized, please send it to the new address above or tell me where to find it.

Please confirm in writing when the change is made, and tell me if any payment is being held on this account.

Thank you.

[Signature]
[Printed name]

• Production: 52,642,896 barrels of oil and 201,829,871 mcf of gas in the last 12 months, oil down 17.9% on the 12 months before.
• Leases: 1,492 on the state record, 1,248 with production in the last 12 months. The largest is Cross Bar Ranch H, Andrews County.
• Drilling permits: 346 in the last three years (19 in 2023, 147 in 2024, 64 in 2025, 116 in 2026). A permit is permission to drill. It is not a well.

Every lease, month by month, and the well mapIts report card: find your lease, buyers, changes, inspections

Source: Railroad Commission of Texas, production data query and drilling permit records, as of August 1, 2026.

• ConocoPhillips (COP) says in its filing with the SEC that it acquired this company. Read the filing