The accommodation doctrine is a Texas rule that limits how the mineral estate may use the surface when a reasonable alternative can prevent substantial disruption to an existing surface use, while preserving the mineral estate's dominant rights. The doctrine limits surface use; it does not give the surface owner the right to stop mineral development.Read more →
API gravity is a measure of how light or heavy a petroleum liquid is compared with water under the standard API gravity calculation. It is based on a scale created by the American Petroleum Institute, where a higher API number means a lighter petroleum liquid and a lower API number means a heavier one. For a mineral owner, API gravity matters because it is a crude-quality measure that can affect…Read more →
An Authorization for Expenditure (AFE) is the document an operator uses to estimate and approve the cost of a proposed oil and gas operation, such as drilling, completion, a major workover, facilities, or plugging and abandoning a well.Read more →
BOE stands for Barrel of Oil Equivalent. It is a standard unit that combines oil and natural gas production into a single figure based on energy content. As oil is measured in barrels and gas is measured in cubic feet, BOE provides a common scale that lets a mineral owner, an operator, or an investor see the total production of a well, lease, or company in a single number.Read more →
A basin is a large underground geologic area where oil and natural gas formed and became trapped over millions of years. Texas sits over three major producing basins: the Permian Basin in West Texas, the Eagle Ford Shale in South Texas, and the Haynesville Shale in East Texas.Read more →
BOPD stands for barrels of oil per day, a measure of how fast a well, lease, or property is producing oil during a specific period. You will usually see it in news, operator announcements, production reports, and purchase offers, often as a headline figure like a well coming online at 1,200 BOPD, rather than on your royalty statement. For a mineral owner it is a snapshot of how fast a well is prod…Read more →
Capital expenditure, commonly known as CapEx, refers to spending used to acquire, develop, construct, or improve long-term assets used in oil and gas operations, such as wells, production facilities, pipelines, and major equipment. Unlike regular monthly expenses, these are large, upfront investments made with the expectation that they will generate production and revenue over several years.Read more →
A change of operator occurs when the company operating a well or lease is replaced by another company. In Texas, this change is recorded through an approved Railroad Commission Form P-4, which updates the RRC operator of record for the well or lease. For a mineral owner, this may mean a different company handles operations or royalty payments. The RRC operator and royalty payor are not always the…Read more →
A Christmas tree is the assembly of valves, gauges, and fittings installed at the top of a completed oil or gas well to control the flow of hydrocarbons out of the well. It takes its name from its tiered, branching shape, which resembles a Christmas tree when viewed from the side. It is usually installed as part of the transition from drilling and completion operations to production, after the wel…Read more →
A decimal interest is the decimal number used to calculate a mineral owner's share of production revenue from a well, lease, or unit. In a simple pooled-unit royalty example, it is commonly based on the owner's net mineral acres, the unit acres, and the royalty fraction. The decimal often appears on a division order and royalty statement, and even a small error can affect every royalty check tied…Read more →
A drill bit is the cutting tool attached to the bottom of the drill string that creates the wellbore as it rotates and grinds through rock. Every well drilled on Texas mineral acreage starts with a drill bit at the bottom of the hole. Bit choice and performance shape how long the drilling phase takes and, indirectly, how soon a mineral owner can expect their first royalty check.Read more →
Drilling mud, also called drilling fluid, is the specialized liquid pumped down the wellbore while a well is being drilled. It travels down the drill string, exits through the drill bit, carries rock cuttings back to the surface, and along the way cools the bit, stabilizes the hole, and controls the pressure of the formations being drilled through.Read more →
A drilling permit is official approval from a regulatory agency that allows an operator to drill an oil or gas well. In Texas, drilling permits are issued by the Texas Railroad Commission, often called the RRC.Read more →
Dry natural gas is natural gas that is almost entirely methane, with very few natural gas liquids such as ethane, propane, or butane mixed in. Because it contains very few recoverable liquids, dry gas usually needs less liquids processing than wet gas before it can be treated, conditioned, and moved through pipelines.Read more →
Estimated ultimate recovery, or EUR, is the estimated total amount of oil, gas, and sometimes liquids that a well, lease, or project is expected to recover over its productive or economic life. It combines what the well has already produced with an estimate of how much may still be recovered under current technical, economic, and operating assumptions. The first part comes from actual production…Read more →
Executive rights are the right to lease a mineral interest, meaning the power to negotiate and sign an oil and gas lease and set its terms. They can be severed from the other rights of mineral ownership and held by a different person, so owning a mineral interest does not always include the power to lease it. For a Texas mineral owner, that raises one practical question: do you control the leasing…Read more →
E&P stands for exploration and production. It refers to the companies and activities in the upstream sector of the oil and gas industry: the ones that search for underground oil and gas, drill the wells, and bring hydrocarbons to the surface. When an operator leases your minerals and develops wells on your tract, leasehold, or pooled unit, that company is usually acting in the E&P role.Read more →
The granting clause is the section of an oil and gas lease that lists exactly what rights you are giving the operator. It defines what minerals they can produce, what activities they are permitted to carry out, and what land those rights apply to.Read more →
The habendum clause is the section of an oil and gas lease that sets how long the lease lasts. It gives the operator a fixed number of years to begin drilling or establish production, and then may keep the lease alive for as long as qualifying production continues.Read more →
Held by production, often shortened to HBP, is the status of an oil and gas lease that has moved past its fixed primary term and is being kept in force by qualifying production, usually production in paying quantities. For a mineral owner, that status matters: while a lease is validly held, the existing lease terms generally continue, and you usually cannot re-lease those same minerals or force…Read more →
Joint Interest Billing (JIB) is the process of dividing actual oil and gas costs among the working-interest owners who share those costs. In simple terms, when several companies own a working interest in the same well, the operator usually pays the bills first. The operator then calculates each owner's share and sends a JIB statement showing what that owner owes.Read more →
A Joint Operating Agreement, or JOA, is a contract between working-interest owners in an oil and gas property. It explains who will operate the wells, how major decisions are made, how costs are shared, and how money from production is divided. One party is named the operator and handles day-to-day operations. The other parties are non-operators. They usually pay their share of costs and may have…Read more →
A lease bonus is a one-time upfront payment a mineral owner receives for signing an oil and gas lease. It is usually paid per net mineral acre. Once it is properly paid, you generally keep it whether or not a well is ever drilled, which is what sets it apart from royalty income that only arrives if a well produces.Read more →
Lease Operating Expense (LOE) is the day-to-day cost of keeping an oil or gas well producing. In simple terms, drilling and completing a well gets it ready to produce. LOE is what it costs to keep that well running after production begins.Read more →
MCF stands for one thousand cubic feet of natural gas. At standard conditions, gas volume is measured at 14.65 psi (pounds per square inch) and 60°F. It is a unit of volume that measures how much space gas occupies, not how much energy it contains.Read more →
MCFE is a gas-equivalent reporting unit used by exploration and production companies, analysts, and reserve evaluators to summarize combined oil, gas, and sometimes liquids production in a single natural-gas-based measure. It stands for thousand cubic feet equivalent, meaning production is expressed as the energy equivalent of one thousand cubic feet of natural gas. For a mineral owner, MCFE may…Read more →
MMBtu stands for one million British Thermal Units. It is the unit of energy used to measure and price natural gas, focusing on the heat energy it contains rather than its volume.Read more →
Natural gas liquids, or NGLs, are the heavier hydrocarbons separated from wet natural gas at a processing plant and sold as distinct liquid products: ethane, propane, butane, isobutane, and natural gasoline. For a mineral owner, NGLs matter because they appear as a separate revenue line on your royalty statement and can add meaningful income on a wet gas lease — though that revenue often carries…Read more →
Net mineral acres (NMA) is the number of acres of mineral rights you actually own. If a 160-acre family tract is shared equally among four siblings, the tract is still 160 acres, but each sibling's NMA is 40.Read more →
A Net Profits Interest, or NPI, is a contractual right to receive a percentage of the net profits from an oil, gas, or mineral property after the costs allowed by the agreement are deducted.Read more →
Net Revenue Interest (NRI) is the share of production revenue a working interest owner actually receives after all royalty burdens are paid. It is the operator's real take, what remains after the mineral royalty and any other royalty interests come off the top.Read more →
Non-consent in oil and gas is a formal choice by an owner not to take part in, and not to pay upfront for, a proposed well or operation. It usually comes up under a Joint Operating Agreement (JOA) when the operator asks owners to either pay their share (consent) or decline (go non-consent). It applies only to working-interest owners or unleased mineral owners. Leased royalty owners do not make thi…Read more →
NPRI, or Non-Participating Royalty Interest, is a royalty interest carved from the mineral estate that usually continues from lease to lease, unless the creating document says otherwise. The holder receives a share of production revenue without paying drilling costs, but has no right to sign leases, negotiate lease terms, or receive lease bonus payments.Read more →
An oil field is a defined geographic area where multiple wells produce oil or gas from the same underground reservoir. The Railroad Commission of Texas formally designates each oil field by name and assigns specific rules that govern how wells in that field can be drilled, spaced, and produced.Read more →
An oil well is the structure built at a specific location to extract crude oil from an underground reservoir or formation, using a drilled wellbore. It begins as a wellbore (the hole drilled through the earth) and becomes a well once casing, cement, tubing, and a wellhead are installed.Read more →
Operating expense, or OpEx, is the ongoing cost of operating and maintaining an oil or gas well or lease. It includes expenses such as labor, maintenance, chemicals, utilities, and other services needed to keep production running. Unlike capital expenses, OpEx continues for as long as the well is producing. These costs may increase as a well gets older and needs more maintenance. For mineral and…Read more →
An Overriding Royalty Interest (ORRI) is a cost-free royalty carved from the working interest in a specific oil and gas lease. It is not ownership of the minerals, and it usually ends when that lease ends.Read more →
A paid-up lease is an oil and gas lease in which the lessee pays everything owed for the primary term up front at signing, so no annual delay rental payments are due before drilling or production. For a mineral owner, that means your bonus covers the primary term and the next payment you are likely to see is royalty income once production is sold, so a quiet stretch after the bonus is normal rathe…Read more →
Plug and abandon, often written P&A, is the permanent closure of an oil or gas well at the end of its productive life. The process involves placing heavy cement plugs at specific depths inside the wellbore to seal off the producing formation, prevent fluids from migrating between rock layers, and protect freshwater aquifers from contamination. Once a well is properly plugged, the wellhead is…Read more →
Post-production costs are expenses that arise after oil or gas is produced from the well and before it is sold or delivered to market. These costs may include gathering, compression, dehydration, processing, treating, transportation, and marketing.Read more →
Proved Developed Producing, or PDP, is a category of oil and gas reserves from existing wells that are already drilled, completed, and producing. These reserves are usually lower-risk than undeveloped reserves because the well is already producing, and the remaining oil or gas estimate is based on real production data.Read more →
A Retained Acreage Clause is a lease provision that limits how much leased acreage a company can keep after the primary term or a stated development period, usually allowing it to keep only the acreage tied to producing or qualifying wells.Read more →
A royalty interest is your right to a share of the revenue from an oil and gas property, generally without paying any of the costs to drill, operate, or plug the wells. For most mineral owners, the royalty interest is the heart of what they hold once they lease their minerals: the lessee, meaning the company that leased your minerals, and the other working interest owners take on the costs and ris…Read more →
The Rule of Capture is a Texas oil and gas doctrine that generally allows a person or operator with the legal right to drill and produce from a lawful well to own the oil or gas captured at that well, even if some of it migrated from beneath a neighboring tract.Read more →
A shut-in well is an oil or gas well that is not currently producing because it has been temporarily closed in, though it may still be capable of producing and is not necessarily abandoned or plugged. A well may be shut in because of low prices, lack of pipeline access, maintenance, market conditions, or other operational reasons.Read more →
A stripper well is a low-producing oil or natural gas well in the late stage of its life that still produces enough to be worth operating. As a rough guide, that often means an oil well making about 10 barrels a day or less, or a gas well making about 60 MCF a day or less, though the exact cutoff varies by program and agency. For a mineral owner, a stripper well usually means smaller royalty incom…Read more →
A well API number is a unique identification number assigned to an oil and gas well or wellbore for regulatory tracking and public recordkeeping. In Texas, the full API number is a 10-digit identifier that begins with 42, the Texas state code. However, Texas Railroad Commission records may display or search the number without the 42, so owners may also see the same well shown by its county code an…Read more →
Well completion is the process that turns a drilled wellbore into a producing well. It includes perforating the casing, fracturing the formation, installing production equipment, and testing the well before it begins delivering oil or gas to the surface.Read more →
A wellbore is the hole drilled into the earth to reach an oil or gas reservoir or formation. It is the physical void the drill bit creates as it cuts through layers of rock toward the target formation.Read more →
Working interest, or WI, is an oil and gas interest that gives a person or company the right to share in production from a leased property, along with the obligation to pay a share of drilling, completion, operating, plugging, and other lease-related costs. In short, working interest is the cost-paying side of the lease, while royalty interest is usually the cost-free side.Read more →
A workover is maintenance or remedial work performed on an existing producing well to restore, maintain, or improve production. It is not a new well, it is the operator investing in a well that is already on the property.Read more →
