How to Read an Oil and Gas Lease — Key Terms Explained

January 15, 2026 • 8 min read

The oil and gas lease is the foundational document in the industry. It grants the lessee (typically an operator) the right to explore for and produce oil and gas from a tract of land. For landmen, mineral owners, and anyone working in oil and gas, understanding lease terms is non-negotiable. This guide breaks down the key provisions you will encounter in a standard Texas oil and gas lease.

The Granting Clause

The granting clause defines what rights the lessor (mineral owner) is conveying to the lessee. A typical granting clause grants the exclusive right to explore, drill, produce, and market oil and gas from the described premises. Pay attention to what minerals are covered — some leases specifically include or exclude substances like coal, lignite, uranium, or water.

Habendum Clause (Term)

The habendum clause sets the lease duration. It has two parts:

• Primary term — A fixed period (commonly 3-5 years in Texas) during which the lessee can hold the lease without production. The lease is maintained by paying delay rentals or by drilling operations.
• Secondary term — "And so long thereafter as oil or gas is produced." Once production is established, the lease can be held indefinitely by continuous production.

The phrase "produced in paying quantities" is the legal standard in Texas. A well that covers its direct operating costs is generally considered to produce in paying quantities, even if it does not generate a profit for the operator.

Royalty Clause

The royalty clause specifies the mineral owner's share of production revenue. Standard Texas royalty rates:

• 1/8 (12.5%) — The historical standard, still seen in older leases and less competitive areas
• 3/16 (18.75%) — Common in moderately competitive areas
• 1/4 (25%) — Standard in the Permian Basin and Eagle Ford in competitive leasing situations
• Higher — Some mineral owners in hot areas have negotiated royalties above 25%

The royalty is free of production costs — the mineral owner does not pay for drilling or operating expenses. However, some leases allow deductions for post-production costs (transportation, processing, compression). Whether these deductions are permissible is one of the most litigated issues in Texas oil and gas law.

Bonus Consideration

The bonus is the upfront payment to the mineral owner for signing the lease. Bonus amounts vary dramatically based on location and competition:

• Remote, unproven areas: $50-$500/acre
• Proven producing areas: $1,000-$10,000/acre
• Core Permian Basin: $5,000-$50,000+/acre in competitive leasing scenarios

Pooling Clause

The pooling clause grants the lessee the right to combine the leased tract with other tracts to form a drilling unit. This is critical for horizontal wells, which typically require drilling units of 640 acres (one section) or larger. Without pooling authority, an operator cannot include your tract in a horizontal well unit without additional agreements.

Shut-In Royalty Clause

A shut-in royalty clause allows the lessee to maintain the lease by paying a nominal annual payment when a well is capable of producing but is shut-in (typically due to lack of pipeline or market). Without this clause, a shut-in well may not satisfy the "production" requirement of the habendum clause, risking lease termination.

Surface Use and Damage Provisions

These provisions address the lessee's right to use the surface for drilling operations and the obligation to compensate the surface owner for damages. In Texas, the mineral estate is dominant, meaning the mineral owner (or their lessee) has an implied right to use the surface. However, this right must be exercised reasonably. Modern leases often include specific surface damage provisions and reclamation obligations.

What to Watch for as a Landman

When reviewing leases during title examination, pay attention to:

• Whether the lease is in its primary or secondary term
• Production requirements — is there actually production holding the lease?
• Depth limitations — some leases only cover specific depth intervals
• Assignment provisions — restrictions on the lessee's right to assign
• Continuous development obligations — requiring ongoing drilling to maintain the lease

Understanding net revenue interest (NRI) requires knowing both the royalty rate and the ownership fraction. See our NRI guide for calculation methods.