#Why Oil and Gas Operators Need an Escheatment Checklist
Escheatment compliance is not a single filing event. It is a year-round process with overlapping deadlines, state-specific dormancy triggers, mandatory due diligence windows, and strict formatting requirements for electronic submissions. For oil and gas operators holding suspense balances across multiple producing states, the margin for error is thin and the consequences of getting it wrong — penalties, interest, and mandatory audits — are substantial.
The challenge is compounded by the nature of the industry itself. Operators routinely hold funds for hundreds or thousands of mineral interest owners, many of whom have outdated addresses, unresolved title issues, or unsigned division orders. Each of those unpaid items starts a dormancy clock the moment the funds become payable, and that clock runs whether or not the operator is actively working the suspense balance.
This guide provides a structured, actionable checklist that covers every stage of the escheatment process: identifying dormancy triggers, tracking state-specific timelines, executing due diligence, preparing NAUPA II filings, and meeting reporting deadlines. It is designed for operators, revenue accountants, and compliance teams who need a single reference they can work from throughout the year.
#Understanding Dormancy Triggers
Before any reporting obligation arises, a dormancy period must expire. The dormancy period begins when property first becomes payable to the owner — not when the operator discovers the issue, not when the check is printed, and not when the item is flagged for review. Understanding what starts the clock is the first step in any escheatment compliance program.
#Common Dormancy Triggers for Oil and Gas Operators
Returned mail. A royalty check or correspondence is mailed to the owner's last known address and returned by the postal service as undeliverable. The funds remain payable from the original date, and the dormancy clock continues to run. Returned mail is one of the most common triggers that leads to escheatment, because operators often lack alternative contact information for the owner.
Uncashed checks. The operator issues a payment, but the owner never negotiates the check. Under most state statutes, the dormancy period runs from the date the check was issued or the date the underlying obligation became payable, whichever is earlier. Stale-dated checks are a significant source of escheatable property in the oil and gas sector.
No owner contact. Even if mail is not returned, the absence of any affirmative contact from the owner — no cashed checks, no correspondence, no address updates, no signed division orders — can trigger dormancy. Several states treat inactivity on the owner's part as evidence that the property is abandoned once the statutory period has elapsed.
Minimum check thresholds. Many operators set minimum payment amounts below which checks are not issued. The funds accumulate in suspense until they exceed the threshold. However, the dormancy period runs from the date each individual payment became payable, not from the date the accumulated balance crosses the minimum. This is a frequently misunderstood point that can lead to inadvertent non-compliance.
Title defects and missing division orders. When an operator cannot distribute funds due to an unresolved title issue or a missing division order, the revenue sits in suspense. The dormancy period still runs from the date the revenue was earned and would have been payable absent the defect.
#State-by-State Dormancy Periods for Mineral Proceeds
One of the most operationally challenging aspects of escheatment compliance is the variation in dormancy periods across producing states. A single operator producing in Texas, Oklahoma, North Dakota, and New Mexico must track four different dormancy timelines with different statutory bases. The following is a reference for the major oil and gas producing states.
#Three-Year Dormancy States
Texas — Mineral proceeds are subject to a three-year dormancy period under Texas Property Code Section 75.101. Texas has one of the shortest dormancy windows among producing states, and the Texas Comptroller of Public Accounts is one of the most active enforcement bodies in the country. The annual filing deadline is November 1, and the dormancy cutoff date is June 30. This means any property that has been dormant for three years as of June 30 must be included in the November report.
North Dakota — North Dakota imposes a three-year dormancy period under North Dakota Century Code Chapter 47-30.1. The annual report is due November 1. With the state's significant Bakken production activity, North Dakota has a large population of mineral interest owners and a correspondingly large volume of escheatable property.
Pennsylvania — Pennsylvania applies a three-year dormancy period under 72 P.S. Section 1301.1 et seq. Critically, Pennsylvania's annual filing deadline is April 15 — not November 1 — which can catch multi-state operators off guard. The earlier deadline means due diligence efforts must begin correspondingly earlier.
#Five-Year Dormancy States
Oklahoma — Oklahoma's Uniform Unclaimed Property Act, codified at 60 O.S. Sections 651 through 682, establishes a five-year dormancy period for mineral proceeds. The annual report is due November 1. Oklahoma's statute includes specific provisions for oil and gas proceeds and requires holders to exercise due diligence before filing.
New Mexico — New Mexico applies a five-year dormancy period under the New Mexico Uniform Unclaimed Property Act (NMSA Section 7-8A-3). The annual report is due November 1. New Mexico has been increasingly active in enforcement, frequently engaging third-party audit firms to examine operator compliance.
Louisiana — Louisiana imposes a five-year dormancy period under Louisiana Revised Statutes 9:151 et seq. The annual report is due November 1. Louisiana's statute applies broadly to mineral proceeds, and the state's unclaimed property division has expanded its examination program in recent years.
Wyoming — Wyoming applies a five-year dormancy period under Wyoming Statutes Section 34-24-102. The annual report is due November 1.
Colorado — Colorado imposes a five-year dormancy period under Colorado Revised Statutes Section 38-13-110. The annual report is due November 1. Colorado's enforcement posture has strengthened alongside growing production volumes in the DJ Basin and other areas.
#Key Takeaway for Multi-State Operators
An item that enters suspense on the same date may become reportable in Texas or North Dakota a full two years before it triggers an obligation in Oklahoma or New Mexico. Operators must track dormancy on a per-state, per-item basis — not on a blanket company-wide schedule.
#The Due Diligence Timeline
Due diligence is the legally required effort to contact the apparent owner before reporting property to the state. It is not optional, and it is not a formality. States audit due diligence records, and failure to perform adequate outreach can result in penalties, rejected filings, and mandatory re-filings.
#What Due Diligence Requires
At a minimum, most states require the holder to send a written notice — typically by first-class mail — to the owner's last known address. The notice must identify the property, state the amount, and inform the owner that the property will be reported to the state as unclaimed if no response is received.
Under Texas Property Code Section 74.1011, holders of property valued at $250 or more must send written notice to the owner's last known address not later than the 60th day before the filing deadline. For property valued under $250, the due diligence requirement is satisfied by maintaining accurate records and making reasonable efforts to locate the owner.
Oklahoma's statute (60 O.S. Section 657) similarly requires written notice by first-class mail at least 60 days before the report due date for property exceeding a statutory threshold. Oklahoma also requires that the notice include specific language prescribed by the Oklahoma State Treasurer's office.
#The 60-to-90-Day Window
In practice, operators should begin due diligence efforts 90 days before the applicable filing deadline — not 60. The 60-day requirement is a statutory minimum, and waiting until the last moment leaves no buffer for returned mail, follow-up research, or address corrections. For states with a November 1 deadline, this means due diligence mailings should go out no later than early August, with a strong preference for beginning in July.
#Due Diligence Checklist
- [ ] Identify all items approaching dormancy. Run a suspense aging report segmented by state and by the date each item became payable. Flag all items that will exceed the applicable dormancy period by the state's cutoff date.
- [ ] Verify last known addresses. Before mailing due diligence notices, verify each owner's last known address against available sources — internal records, prior correspondence, skip-tracing databases, and public records.
- [ ] Prepare and mail written notices. Draft notices that comply with each state's statutory requirements, including the property description, amount, and the consequence of non-response. Mail by first-class mail at least 60 days before the filing deadline.
- [ ] Document everything. Retain copies of all notices, mailing records, returned mail, and any owner responses. States can and do request due diligence documentation during audits. If you cannot prove you performed due diligence, the state may treat it as if you did not.
- [ ] Process owner responses. If an owner responds to a due diligence notice — by providing a current address, returning a signed division order, or cashing a reissued check — remove that item from the escheatment report. Update your records accordingly.
- [ ] Perform secondary outreach for high-value items. For items above a significant dollar threshold, consider additional outreach methods: certified mail, phone contact, email if available, or engagement of a professional skip-tracing or heir-finding service. While not always statutorily required, this additional effort can recover funds that would otherwise be escheated.
- [ ] Log the due diligence completion date. Record the date on which due diligence was completed for each item. This date is part of the information reported in the NAUPA II filing.
#NAUPA II Filing Format
The National Association of Unclaimed Property Administrators (NAUPA) established the NAUPA II electronic filing standard, which is now the required or preferred format for unclaimed property reporting in virtually every U.S. state. Operators filing in multiple jurisdictions benefit from a single standardized format, though each state may impose additional requirements on top of the base standard.
#What NAUPA II Requires
A NAUPA II file is a fixed-width or delimited text file that includes detailed information about both the holder (the operator) and the owner. Key data elements include:
Holder information — Legal entity name, federal employer identification number (FEIN), contact name, address, and phone number.
Owner information — Owner name, last known address, Social Security number or tax identification number (if available), and relationship to the property.
Property information — Property type code (mineral proceeds typically fall under specific NAUPA property type codes for oil and gas royalties), the amount, the date the property became payable, the date of last owner contact, and the due diligence completion date.
Aggregate reporting. For items below a state-specified threshold — often $50 — states may allow or require aggregate reporting, where individual owner details are omitted and the items are reported as a lump sum. Each state sets its own threshold, so operators must verify the applicable limit for each jurisdiction.
#Common Filing Errors
Several errors commonly cause NAUPA II filings to be rejected or flagged for review:
- Incorrect property type codes. Using a generic property type code instead of the specific code for mineral proceeds can delay processing and trigger follow-up inquiries from the state.
- Missing or invalid Social Security numbers. While an SSN is not always required, filing without one when it is available — or filing an obviously invalid number — can create problems. Include the SSN when you have it; leave the field blank rather than entering placeholder data when you do not.
- Incorrect state of remittance. Property must be reported to the state of the owner's last known address. If no address is on file, the property is reported to the state of the holder's incorporation. Filing to the wrong state can result in duplicate reporting obligations or penalties in the correct state.
- Mismatched totals. The sum of individual line items must match the total remittance amount. Discrepancies will cause the filing to be rejected.
#Annual Reporting Calendar by State
Maintaining a master compliance calendar is essential for multi-state operators. The following is a consolidated reference for the major producing states.
#January Through March — Preparation Phase
- January: Begin the annual suspense review. Pull aging reports for all states. Identify items that will exceed dormancy thresholds by each state's cutoff date.
- February: Begin address verification and skip-tracing for items approaching dormancy. Prioritize items in Pennsylvania, which has the earliest filing deadline.
- March: Complete due diligence mailings for Pennsylvania (April 15 deadline). Begin preparing the Pennsylvania NAUPA II filing.
#April — Pennsylvania Filing
- April 15: Pennsylvania annual unclaimed property report and remittance due. File via the state's electronic reporting system using the NAUPA II format.
#May Through July — Due Diligence Execution
- May–June: Identify all items that will be reportable for the November 1 filing states (Texas, Oklahoma, New Mexico, North Dakota, Louisiana, Wyoming, Colorado, and others). Run final dormancy analysis against each state's cutoff date.
- July: Begin mailing due diligence notices for all November 1 states. Starting in July provides a full 90-day window before the deadline.
#August Through September — Response Processing
- August: Continue processing owner responses to due diligence notices. Update records, reissue payments, and remove resolved items from the escheatment queue.
- September 1: Statutory 60-day minimum for most November 1 states. All due diligence notices should have been mailed by this date at the latest. Continue processing responses received after this date.
#October — Filing Preparation
- October: Prepare NAUPA II files for all November 1 states. Reconcile the total remittance amount against the detail file. Verify property type codes, owner information, and state-of-remittance assignments. Many states offer a pre-submission validation tool — use it.
#November — Filing and Remittance
- November 1: Annual unclaimed property report and remittance due in Texas, Oklahoma, New Mexico, North Dakota, Louisiana, Wyoming, Colorado, and most other producing states. File electronically using NAUPA II. Remit funds via the method specified by each state (electronic funds transfer, check, or other approved method).
#December — Post-Filing Review
- December: Confirm receipt and acceptance of all filings. Retain copies of filed reports, due diligence documentation, and remittance confirmations. Address any rejection notices or state inquiries promptly.
#Penalties for Non-Compliance
States take escheatment enforcement seriously, and the penalties for non-compliance can be severe. Understanding the penalty structure is essential for building the business case for a robust compliance program.
#Texas
Under Texas Property Code Sections 74.701 through 74.707, holders who fail to report or remit unclaimed property are subject to penalties of up to $500 per day for each day the report is delinquent, plus interest on the unreported property at a rate set by the Comptroller. The Texas Comptroller may also impose penalties for failure to perform due diligence and for filing inaccurate reports. Texas has the statutory authority to audit holders and examine records going back 10 years.
#Oklahoma
Oklahoma's Uniform Unclaimed Property Act (60 O.S. Section 672) authorizes the State Treasurer to impose interest on late remittances at a rate of 12 percent per annum, plus civil penalties for willful failure to report. Oklahoma also permits the State Treasurer to estimate the amount of unreported property and assess the holder accordingly.
#General Enforcement Trends
Across all producing states, enforcement activity has increased in recent years. Many states now contract with third-party audit firms — such as Kelmar Associates, Verus Financial, and Treasury Services Group — that conduct examinations on a contingency-fee basis. These examinations can be protracted and expensive, often covering multiple reporting years and requiring the production of extensive documentation. Operators who cannot demonstrate a consistent, documented compliance history are at the highest risk of being selected for examination.
#Voluntary Disclosure Programs
Several states, including Texas and Oklahoma, offer voluntary disclosure agreements (VDAs) that allow holders to come into compliance without the full penalty exposure of an audit. A VDA typically involves filing past-due reports, remitting the property with reduced or waived penalties, and committing to future compliance. VDAs are generally only available to holders who have not already been contacted by the state or a third-party auditor regarding their compliance status.
#The Complete Escheatment Compliance Checklist
The following checklist consolidates the key action items from each phase of the escheatment process into a single reference. Use it as a working document throughout the year.
#Year-Round
- [ ] Maintain a centralized suspense ledger with per-item aging data, including the date each item became payable and the applicable state.
- [ ] Track owner contact activity — cashed checks, returned mail, signed division orders, address updates — at the individual owner level.
- [ ] Monitor state regulatory updates for changes to dormancy periods, filing deadlines, due diligence requirements, and NAUPA II formatting rules.
- [ ] Investigate and resolve suspense items proactively, before they approach dormancy thresholds.
#6 Months Before Filing Deadline
- [ ] Run a comprehensive suspense aging report segmented by state.
- [ ] Identify all items that will exceed the applicable dormancy period by the state's cutoff date.
- [ ] Begin address verification and skip-tracing for owners with undeliverable or outdated addresses.
- [ ] Prioritize high-value items for enhanced outreach efforts.
#90 Days Before Filing Deadline
- [ ] Prepare state-specific due diligence notices that comply with each jurisdiction's statutory requirements.
- [ ] Mail written notices to all apparent owners by first-class mail.
- [ ] Document all mailings, including the date sent, the address used, and the content of the notice.
#60 Days Before Filing Deadline
- [ ] Confirm that all required due diligence notices have been mailed. This is the statutory minimum in most states.
- [ ] Continue processing owner responses and removing resolved items from the escheatment queue.
- [ ] Begin preparing NAUPA II electronic files.
#30 Days Before Filing Deadline
- [ ] Finalize the NAUPA II filing for each state. Reconcile detail records against total remittance amounts.
- [ ] Validate files using state-provided pre-submission tools where available.
- [ ] Prepare remittance payments in the format required by each state.
- [ ] Conduct a final review of owner responses received since the due diligence mailing.
#Filing Deadline
- [ ] Submit NAUPA II electronic reports to each applicable state.
- [ ] Remit funds via the approved payment method for each jurisdiction.
- [ ] Retain confirmation of filing and payment for each state.
#Post-Filing
- [ ] Monitor for rejection notices or state inquiries. Respond promptly.
- [ ] Archive all due diligence documentation, filed reports, and remittance records. Retain for a minimum of 10 years to cover potential audit lookback periods.
- [ ] Update the suspense ledger to reflect escheated items.
- [ ] Begin the next cycle of suspense review and proactive owner outreach.
#Related Reading
- Texas Escheatment Compliance & NAUPA Filing
- Unclaimed Property Management in Oil & Gas
- From Suspense to Cash: Resolution Process
#How AGR Streamlines Escheatment Compliance
Managing escheatment obligations across multiple states, thousands of mineral interest owners, and years of suspense history is operationally intensive. AGR's platform is built to reduce that burden by automating the core workflows that drive compliance.
AGR tracks dormancy periods on a per-item, per-state basis and flags items as they approach reporting thresholds — giving your team time to resolve suspense items before they become reportable. The platform generates due diligence notices that comply with each state's statutory requirements, logs all outreach activity for audit-ready documentation, and produces NAUPA II-formatted electronic files ready for submission.
Instead of managing escheatment through spreadsheets and manual calendar reminders, operators using AGR have a single system of record that connects suspense management, due diligence execution, and state reporting into one continuous workflow. The result is fewer missed deadlines, cleaner filings, and a defensible compliance record that stands up to examination.
See how AGR's Suspense Agent helps operators stay ahead of escheatment deadlines.