An exception is a right that relates to a specific property but is held by another person who may not be a party to the contract to sell a property or a mineral interest. For example, a seller of real property may sell the property with the exception that some other person already owns one-half of the mineral interests. This other person is usually identified somewhere in the chain of title.

Typically, the executive right is the power to lease the minerals. Many times, it is severed when the mineral estate is sold to multiple parties. For example, if a person sells half of the mineral estate to another, the seller may decide to retain the power to lease the entire mineral estate at his discretion. Under this example, the other mineral interest owners would not be able to participate in the decision to lease the minerals.

The Broker/Lawyer Committee at TREC has on several occasions chosen not to insert a specific reservation clause into the residential contract forms and has instead included Paragraph 2E of the One to Four Family Residential Contract (Resale) (TREC 20-18, TXR 1601) which allows buyers to make any reservations for oil, gas, or other minerals, water, timber, or other interests with an attached addendum. The committee believes that the better public policy is to provide for the conveyance of the fee simple estate (without reservations) in residential sales that utilize the standard TREC forms. Historically, these items have not been at issue during negotiations in the typical residential sale (probably due to the fact that the minerals may have been severed, the surface is too small to worry about drilling activity, and cities have regulated drilling activities within their jurisdictional limits). If a seller wishes to reserve any mineral interests at closing, the Addendum for Reservation of Oil, Gas, and Other Minerals (TREC 44-3, TXR 1905) may be used to accomplish this. Should the seller have any questions regarding their particular transaction then the broker should advise them, in writing, to seek the advice of legal counsel.

Most commonly, a bonus is paid to the lessor under a mineral lease or oil gas lease as an incentive to sign the lease. For example, an operator may agree to pay $500 to an owner as a signing bonus. There are other types of bonuses that may be negotiated.

If a seller wishes to retain any mineral interests when using the Farm and Ranch Contract, the Addendum for Reservation of Oil, Gas, and Other Minerals (TREC 44-3, TXR 1905) may be used to accomplish this. If a third party owns any of the mineral interests, and the parties are using the Farm and Ranch Contract, a seller may want to include that information in Paragraph 6E, Exception Documents. That way, those third-party interests may not form a basis for objection to title. Exceptions should be referenced by the specific recording data. The seller will ultimately need to determine the extent of the mineral interests and rights that they wish to reserve. This may or may not become an issue of significant negotiations between the buyer and seller. If the sellers have any questions about their particular mineral interests, or the transaction itself, then the broker will likely need to suggest, in writing, that they seek the assistance of counsel.

It is a form of compensation to the lessor (or others) under a mineral lease. It is a share in the production. Royalties are typically expressed in fractions (e.g., one-eighth of production). However, they can be stipulated in other ways. Royalties can be sold separately from other mineral interests. The owner of a royalty retains the right to receive the royalty under an oil and gas lease; but the royalty owner may not necessarily be the mineral owner. Many times mineral owners will sell rights to royalties or they may retain rights to royalties when selling their interest. There are various types of royalty interests (e.g., overriding royalty, non-participating royalty, or a term royalty). The common elements of a royalty are: (1) the royalty owner does not have the right to use the surface; (2) it is contingent only on production (not on the profit or cost of the operator); (3) it does not carry the right to lease the minerals; and (4) it does not participate in other lease benefits (for example, bonuses or delay rentals).

The TREC contract forms and Texas REALTORS commercial forms convey all interests in the property, including the mineral interests, unless such mineral interest is specifically reserved by an attached addendum. Sellers may use the Addendum for Reservation of Oil, Gas, and Other Minerals (TREC 44-3, TXR 1905) to reserve all or an identified percentage interest in the mineral estate owned by the seller, as defined in the addendum. This addendum may be used with TREC and Texas REALTORS® residential, farm and ranch, and commercial contracts.

It is an agreement between the owners of the mineral estate (or mineral interests) and a producer or operator. In exchange for compensation specified in the lease, the lessee is given the right to search for, develop, and produce the oil and gas or minerals. Commonly, the industry states that the lessee "works" or "operates" the interest leased because he performs the work. The lease can encompass the right to work all the minerals or only those specified in the lease (e.g., limited to oil and gas).

This determination is similar to determining the value of any other asset. Namely, what is the price at which a willing seller would agree to sell, and what is the price at which a willing buyer would agree to buy? This requires a familiarity with transactions involving mineral interests and royalty interests and current market prices for such interests. One should contact an expert to make this determination.

Oil and gas are the most common minerals that bring value to property in Texas. However, the definition of a mineral is broader than oil and gas and can include uranium, sulfur, lignite, coal, and any other substance that is ordinarily and naturally considered a mineral.

Money, surface rights, and possible drilling activities are probably the three most concerning factors. The mineral interests may be of value to the buyer. The buyer will also want to know if there is a possibility or likelihood that an operator will need to use all or part of the surface that the buyer controls. The buyer will also want to know if there is a possibility or likelihood that an operator will place a well or other machinery on or near the property and whether the operator may need to cross the property.

Determining the precise extent of ownership of the mineral estate requires a review of the chain of title of the property in question. The owner will need to consult with an expert, such as an oil and gas attorney or landman, to make this determination. Some title companies may, for a fee, provide this service.

Briefly, a mineral interest is part of the ownership rights related to owning real property. The owner of a mineral interest owns all or part of the mineral estate. The owner of the mineral estate typically holds the right to search for, develop and produce minerals from the property. A mineral interest can be severed from the surface rights and can be sold or leased separately from the surface once it is severed from the surface. Usually, the owner of the mineral estate holds the right to use the surface to the extent that is reasonably necessary to extract the minerals (implied easement). Just as one may have multiple owners of the surface, there may be multiple owners of the mineral interests. Each mineral interest holder may have different rights. The holders of the mineral interests together own the mineral estate.

A reservation is a retention of rights in the property by the seller. For example, the seller may sell a property but may reserve to himself (or others) one-half of the mineral interest in the property. Under this example, one-half of the mineral interests are severed from the property, assuming that the seller owned all of the mineral interests before agreeing to sell.

The form Information about Mineral Clauses in Contract Forms (TXR 2509) is designed to provide general information about minerals and mineral clauses. It can be given to a buyer or a seller to explain what mineral clauses are and why REALTORS® are not permitted to draft and add such clauses to contracts. This form can be signed by whoever receives it in order to acknowledge receipt of the form. Since the form is informational in nature, it is not intended to be an agreement between a buyer and a seller and should not be attached to or made a part of any contract. If a seller in a residential transaction wishes to reserve all or a part of their mineral interests and rights at closing, the Addendum for Reservation of Oil, Gas, and Other Minerals (TREC 44-3, TXR 1905) may be used to accomplish this. Should a buyer or seller have any questions regarding the mineral interests or rights in a transaction then they should seek the advice of an attorney.