The OCC is the regulatory body that oversees oil and gas operations in Oklahoma. For mineral owners, the OCC is where the action happens — it’s where operators apply for permits, where drilling units are established, where pooling orders are issued, and where wells are officially recorded. Understanding the filings that flow through the OCC is essential to knowing what’s happening on your minerals.
This guide covers every major filing type you’re likely to encounter as a mineral owner. For each one, we’ll explain what it is, what it signals, and whether you need to take action. Bookmark this page — it’s the kind of reference you’ll come back to.
Quick Reference
Before diving into the details, here’s a summary of the major filing types and whether they require action from you:
| Filing Type | What It Signals | Action Required? |
|---|---|---|
| Spacing Application | Operator wants to establish a drilling unit | Optional — can attend hearing |
| Pooling Application | Operator wants to combine unleased interests | Optional — can attend hearing |
| Pooling Order | OCC has approved pooling; election required | Yes — 20-day deadline |
| Intent to Drill (Form 1000) | Drilling is imminent | No — informational |
| Increased Density | Operator wants to drill more wells in an existing unit | Optional — can attend hearing |
| Location Exception | Well location deviates from standard spacing | Optional — can attend hearing |
| Completion Report (Form 1002A) | Well has been drilled and is ready for production | No — informational |
| Multi-Unit Horizontal Well | Well spans multiple sections | Varies — may trigger pooling |
| Operator Transfer | Well operation changing hands | No — but verify royalties continue |
| Plug & Abandon | Well being permanently closed | No — informational |
The Lifecycle of a Well: How Filings Connect
Before looking at each filing type individually, it helps to understand how they fit together. OCC filings aren’t random — they follow a predictable sequence that mirrors the lifecycle of a well. Knowing where you are in this sequence tells you what’s coming next.
If you’re monitoring your sections, a spacing application is your earliest warning that drilling is coming. It gives you time to research the operator, understand the area’s economics, and potentially negotiate a voluntary lease — all before a pooling order arrives with its 20-day deadline. The earlier in the sequence you become aware, the more options you have.
Spacing Applications and Orders
A spacing application is the operator’s request to the OCC to establish (or modify) a drilling unit — the geographic area within which a well or wells will be drilled. For horizontal wells, the standard unit is a 640-acre section. For older vertical wells, units are often smaller — 160 acres or even 40 acres.
The spacing order establishes the legal boundaries of the drilling unit and specifies which formations are included. This is important because it determines which mineral owners are part of the unit and how their interests will be calculated.
For mineral owners, a new spacing application on your section is the first major signal that an operator is preparing to drill. It’s filed before the pooling application and before the drilling permit. If you haven’t been approached about leasing, seeing a spacing application is your cue to start paying attention.
Action Required
Optional. You can attend the OCC hearing to support or protest the spacing application. Most mineral owners don’t attend spacing hearings, but if you believe the proposed unit configuration is unfavorable to your interests, appearing (or having an attorney appear) is your opportunity to object.
What It Signals
Drilling is in the planning stages. Expect a pooling application and/or lease offers within the coming months. This is the ideal time to research the operator and the area’s economics.
Pooling Applications and Orders
A pooling application is filed when an operator wants to combine all mineral interests in a drilling unit so they can proceed with a well. This happens when some mineral owners haven’t signed voluntary leases — either because they couldn’t be located, didn’t respond, or couldn’t agree on terms with the operator.
After the OCC holds a hearing, they may issue a pooling order. This is the filing that directly affects unleased mineral owners: it gives you a set of election options and a 20-day deadline to choose. The pooling order specifies the bonus rates, royalty rates, and participation options available to you.
This is the single most important filing type for mineral owners. Missing the deadline means you’re assigned the default option — which is almost always the least favorable. For a comprehensive walkthrough of your election options, see our Understanding Pooling Orders guide.
Action Required
Yes — critical. If a pooling order is issued on your section and you’re an unleased mineral owner, you must make your election within 20 days of the order date. You can also attend the hearing on the pooling application to protest or negotiate.
What It Signals
An operator has committed to drilling this unit. Lease negotiations have already occurred (or been attempted). A drilling permit typically follows shortly after the pooling order.
There’s often a gap between when a pooling application is filed and when the pooling order is issued. The application goes on the OCC docket first, and the hearing may be weeks or months later. If you see a pooling application on your section, that’s your window to contact the operator and negotiate a voluntary lease — which almost always gets you better terms than the pooling order will offer.
Intent to Drill (Form 1000)
The Intent to Drill, filed on Form 1000, is the operator’s official drilling permit application. It specifies the well’s name, proposed location (surface and bottomhole coordinates), target formation, proposed depth, and the operator’s identity. For horizontal wells, the Form 1000 includes the lateral path — the planned horizontal trajectory through the target formation.
A Form 1000 means a rig is coming. Operators don’t file drilling permits speculatively — the paperwork, fees, and regulatory requirements make it a commitment signal. Drilling typically begins within weeks to a few months of the permit being approved.
The permit also tells you important details about the planned well: which formation is being targeted (Woodford, Meramec, Mississippian, etc.), the lateral length (which affects the well’s production potential), and whether the well is a horizontal or vertical well.
Action Required
No direct action required — this is informational. However, if you see a drilling permit on your section and you haven’t been contacted about leasing or pooling, you should investigate. A pooling application may have been filed that you missed, or the operator may be attempting to contact you.
What It Signals
Drilling is imminent. The spacing, pooling, and regulatory approvals are in place (or nearly so). Expect to see a rig on location within weeks.
Increased Density Applications
An increased density application asks the OCC for permission to drill more wells in a section than the original spacing order allowed. This is extremely common in Oklahoma’s active horizontal plays. An operator might drill an initial well in the Woodford formation, then come back and apply for increased density to drill a second Woodford well, or wells targeting different formations like the Meramec or Mississippian within the same section.
For mineral owners, increased density is generally positive — more wells typically means more production and more royalty income. However, each new well may trigger a new pooling order if your interest isn’t already leased for that specific well or formation. Pay attention to what formations are covered by your existing lease, if you have one.
Increased density applications are particularly common in the STACK and SCOOP plays, where a single section might eventually have 4, 6, or even 10+ horizontal wells targeting different formations and lateral positions.
Action Required
Optional. You can attend the hearing. The main thing to watch for is whether the increased density triggers a new pooling order that affects your unleased formations.
What It Signals
The operator is expanding development in this section — a sign that the initial wells were productive enough to justify additional drilling. More wells, more production potential.
Location Exceptions
A location exception allows an operator to drill a well at a location that deviates from the standard spacing requirements. Oklahoma’s spacing rules generally dictate minimum distances from section lines and from other wells. When geological conditions, surface access issues, or other practical considerations require the well to be drilled at a non-standard location, the operator files a location exception.
For horizontal wells, location exceptions are very common. The planned surface location (where the rig sits) and the bottomhole location (where the lateral ends) must comply with spacing rules, but the geometry of horizontal drilling frequently requires adjustments. Multi-section horizontal wells, where the lateral crosses section boundaries, almost always involve location exception filings.
For most mineral owners, location exceptions are routine and don’t change the economics of your interest. The exception may matter if the well’s location affects which mineral owners are included in the drilling unit or if the well’s lateral path comes closer to (or farther from) your specific acreage within the section.
Action Required
Optional. You can attend the hearing and protest if you believe the location is unfavorable to your interests, but this is rare for individual mineral owners.
What It Signals
The operator is actively planning the well and working through the regulatory requirements. It’s an indicator that drilling plans are advancing.
Completion Reports (Form 1002A)
The completion report is filed after a well has been drilled, cased, perforated, and tested. It’s the official record that the well exists and is (or will be) producing. The Form 1002A includes critical details: the well’s actual total depth, the formations encountered, the completion technique (hydraulic fracturing stages, lateral length for horizontal wells), and the initial production test results.
For mineral owners, the completion report is your first concrete look at the well’s potential. The initial production (IP) rate — usually reported as barrels of oil per day (BOPD) and thousand cubic feet of gas per day (MCF/D) — gives you a rough sense of how productive the well is, though initial rates can be misleading. What matters more is the decline curve over the first 6–12 months of production.
After the completion report is filed, the operator will typically send division orders to all mineral owners in the unit. If you’re expecting a division order or royalty checks from a well on your section, the completion report filing is your signal that they should be arriving soon.
Action Required
No direct action required. However, you should note the well name, API number, and initial production rates for your records. These details are useful when verifying your division order and monitoring your royalty payments.
What It Signals
The well is drilled and completed. Production has started or will start soon. Division orders and royalty checks should follow within weeks to a few months.
Multi-Unit Horizontal Well Applications
Modern horizontal wells frequently span more than one section. A two-mile lateral, for example, might start in one section and end in an adjacent section — or even cross through three sections. When this happens, the operator files a multi-unit horizontal well application asking the OCC to approve the well spanning multiple drilling units.
This is significant for mineral owners because it means your section may be affected by a well whose surface location is in a completely different section. The well’s production is allocated among the sections it crosses, typically based on the percentage of the lateral that falls within each section. Your royalty interest in a multi-section well is based on this allocation, not on the total well production.
Multi-unit wells are now the standard in Oklahoma’s active plays. A typical STACK horizontal well has a two-mile lateral, which almost always crosses at least two sections. Understanding this helps you make sense of division orders and production allocations.
Action Required
Varies. The multi-unit application itself is informational, but it may come with associated pooling orders for each section the well crosses. If you’re an unleased mineral owner in any of the affected sections, you’ll need to respond to the pooling order.
What It Signals
A significant horizontal well is planned that affects multiple sections. This often indicates a major operator with a broader development plan for the area.
Operator Transfers (Form 1073)
An operator transfer occurs when the responsibility for operating a well changes hands. This can happen because of a sale (one company buying another’s wells), a corporate merger, or a transfer of operatorship within a joint venture. The Form 1073 records this change with the OCC.
For mineral owners, an operator transfer means your royalty checks will start coming from a different company. The new operator should send you an updated division order. Your ownership interest doesn’t change — only who is operating the well and processing your royalty payments.
Operator transfers happen frequently in Oklahoma, particularly as the industry consolidates. Small operators sell assets to larger ones, companies merge, and private equity-backed operators cycle through portfolios. Keeping track of who operates your wells helps you verify that royalties are being paid correctly through the transition.
Action Required
No direct action required. However, verify that the new operator has your correct contact information and watch for a new division order. If royalty checks stop arriving after a transfer, contact the new operator’s division order department.
What It Signals
A change in who operates and pays royalties on your well. Not inherently good or bad — but worth monitoring to ensure continuity of your royalty payments.
Plugging and Abandonment
When a well is no longer economic to operate, the operator plugs it — filling the wellbore with cement to permanently seal it — and files a plugging report with the OCC. This officially takes the well out of service. The well will no longer produce, and royalty payments from that well will cease.
A plugged well doesn’t necessarily mean your minerals are worthless. The well may have targeted one formation while other formations remain untapped. New drilling technology or higher commodity prices could make the area attractive again in the future. Your mineral rights persist regardless of what happens to any individual well.
However, if all wells on your section are plugged and no new drilling is planned, your minerals become “open” — available for new leasing if an operator becomes interested in the future. Older vertical wells in mature fields are being plugged across Oklahoma at a steady rate, even as new horizontal wells are drilled in the same areas.
Action Required
No. The operator is responsible for plugging and any associated environmental remediation. Your royalty payments from this well will end, but your mineral ownership is not affected.
What It Signals
The well has reached the end of its economic life. This is normal — all wells eventually deplete. Your minerals remain and may be developed again in the future.
Other Filing Types
Beyond the major filing types above, you may encounter several other OCC filings in your research:
Temporary Spacing Orders are issued when the standard spacing hasn’t yet been established for an area and an operator needs interim approval to drill. These are common in newer development areas.
Vacuum Orders allow an operator to produce a well at reduced pressure to extract additional oil and gas. This is a secondary recovery technique used on older wells and doesn’t require action from mineral owners.
Unitization Orders combine multiple drilling units into a single, larger unit for enhanced recovery operations like waterflooding or CO2 injection. These are less common than pooling orders but can affect your interest similarly.
Well Status Changes are filed when a well’s status changes — from active to temporarily abandoned, from temporarily abandoned back to active, or from one producing formation to another (recompletion). These are informational and help you track the current state of wells on your sections.
Environmental Compliance Filings relate to disposal wells, produced water management, and other environmental aspects of well operations. These don’t directly affect your royalties but can be relevant if you own surface rights in the same area.
How to Stay Informed
The OCC’s online docket and well records systems are publicly accessible. You can search by section, township, range, operator name, well name, or cause number. However, the OCC systems are designed for industry professionals, not casual users — the interface can be confusing, and there’s no built-in way to set up alerts when new filings appear on your sections.
For mineral owners who want to stay on top of their properties, the options are: check the OCC website manually on a regular basis (weekly or monthly, depending on how active your area is), hire a landman to monitor for you (expensive, but thorough), or use a monitoring service that automates the process. The key is consistency — a filing you miss today could have a 20-day deadline attached to it.
Frequently Asked Questions
The OCC is a state agency that regulates the oil and gas industry in Oklahoma. For mineral owners, the OCC is the body that issues drilling permits, establishes spacing and drilling units, approves pooling orders, and oversees well operations.
You can search OCC filings through the Commission’s online docket system and well records database. Search by section, township, and range to find filings related to your property. You can also search by operator name or cause number. For a step-by-step walkthrough, see our guide to navigating the OCC website.
A spacing order establishes the drilling unit — it defines the geographic boundaries. A pooling order comes after spacing and combines all the mineral interests within that unit so the operator can proceed with drilling. Spacing sets the boundaries; pooling addresses the ownership within those boundaries.
It means an operator has received approval to drill a specific well. Drilling is imminent — typically within weeks to months. If you haven’t been contacted about leasing, expect a pooling application to follow.
It allows an operator to drill additional wells in a section beyond what the original spacing order permitted. This is common in active plays where operators drill multiple horizontal wells targeting different formations. More wells means more potential production and possibly new pooling orders.
No. The filing that requires action is a pooling order, which gives you a 20-day deadline. Spacing and increased density applications have optional hearings. Other filings like permits and completions are informational — they tell you what’s happening but don’t require you to do anything.
The Bottom Line
OCC filings are the public record of everything happening with oil and gas development in Oklahoma. As a mineral owner, you don’t need to understand every detail of every filing — but you do need to know which ones require action (pooling orders), which ones signal upcoming changes (spacing applications, permits), and which ones confirm activity you should track (completions, transfers).
The filing that matters most is the one you don’t know about. A spacing application you catch early gives you months to prepare. A pooling order you miss costs you money. Building some kind of regular monitoring habit — whether it’s checking the OCC website yourself, working with a landman, or using an automated service — is the single best investment you can make in protecting your mineral interests.