Diamondback E&P LLC

The state's monthly reports list 5,295 leases under Diamondback E&P LLC at some point. Of those, 455 are reported by another operator today (122 by Hannathon Petroleum II, LLC, 112 by TRP Operating LLC, 62 by Blue Arrow Operating, LLC, 159 by others); 3,847 still report production under Diamondback E&P LLC; 264 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 newest state filings list Diamondback E&P LLC as a gatherer on 186 producing leases of 2 operators in 5 Texas counties.

Source: Railroad Commission of Texas, P-4 gatherer and purchaser filings, the newest for each lease, as of October 24, 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 May 4, 2026RRC P-5 file
• Right to do business in TexasActiveComptroller franchise tax file
• Secretary of StateActiveSince March 5, 2012Comptroller franchise tax file
• Registered in TexasMarch 5, 2012Formed in DEComptroller franchise tax file

Name on file

DIAMONDBACK E&P LLC

Operator number (P-5)

217012

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

Condensate Gatherer, Oil Gatherer, Gas Operator, Oil Operator

Record built

June 6, 2012

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 nameDIAMONDBACK E&P LLCEvery word, with LLC, LP, Inc. or Corp. as printed here.
• The state operator number217012Not every letter prints it. A division order usually does.
• The city it mails fromMidland, TX 79701-4216A 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) 221-7400Call 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

Legal name

DIAMONDBACK E&P LLC

Taxpayer number

32047209674

Entity type

Foreign limited liability company

Secretary of State file number

0801560528

Secretary of State status

Active (March 5, 2012)

Right to transact business in Texas

Active

Formed

March 5, 2012

Formed in

DE

Registered office

Austin, TX

Registered agent

CORPORATION SERVICE COMPANY D/B/A CSC-LAWYERS INCO

Mailing city

Midland, TX

Source: Texas Comptroller, franchise tax permit holder file (data.texas.gov), as of September 26, 2026.

Look it up yourself: Secretary of State business filings (search for file number 0801560528), 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]

Diamondback Energy, Inc.
Attn: Owner Relations
900 NW 63rd Street
Oklahoma City, OK 73116

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: 220,551,725 barrels of oil and 860,598,818 mcf of gas in the last 12 months, oil up 19.6% on the 12 months before.
• Leases: 4,840 on the state record, 3,847 with production in the last 12 months. The largest is Butch Cassidy 43-7 Unit 1, Martin County.
• Drilling permits: 1,299 in the last three years (26 in 2023, 311 in 2024, 439 in 2025, 523 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.

• Diamondback Energy, Inc. (FANG) lists this company as a subsidiary in its filing with the SEC. Read the filing