Texas vs. New Mexico: Water Rights for Rural Buyers

When it comes to rural properties, we always advise our clients that it’s better to dig up the facts than make wide-sweeping assumptions. This is especially true when it comes to water. Unlike a home in the city that’s already hooked up for utilities, rural land sometimes doesn’t have a water line or meter on the property; and acquiring those may not be as simple as calling the water company.

If you’re considering purchasing rural land in either Texas or New Mexico, tap into our expertise below to ensure it’s smooth sailing for your water situation.

Private v. Public Property

The key difference in water rights between Texas and New Mexico is that Texas treats groundwater as private property under the “rule of capture,” while New Mexico treats all water, surface, and ground, as public property managed by the state under the prior appropriation doctrine.

Texas Water Rights & the Rule of Capture for Rural Buyers

Rule of capture means landowners generally have the right to pump as much groundwater as they can from a well on their property, for beneficial use, without a permit, in most areas. The water is considered the landowner’s property once captured. This right of capture is a property right that runs with the land, but Groundwater Conservation Districts (GCDs) can be formed to manage and regulate groundwater rights, including well spacing and pumping in specific areas.

However, the surface water from rivers, lakes, and streams is owned by the state. The right to use it is granted through a permit system based on the doctrine of prior appropriation which boils down to “first in time, first in right.” An exception allows riparian landowners (those who own land abutting surface water) to use surface water for domestic and livestock purposes without a permit. Existing surface water rights are fully appropriated in many areas, meaning new buyers may need to purchase existing rights or obtain temporary permits.

New Mexico Water Rights for Rural Buyers

New Mexico doesn’t separate ground and surface water. Instead, all water in the state belongs to the public and is subject to appropriation for beneficial use and is administered through the Office of the State Engineer (OSE).

It’s important to know that land ownership does not automatically grant the right to use water; a permit is required. New Mexico strictly follows the doctrine of prior appropriation, so water rights are based on a priority date (“first in time, first in right”). This means that in times of shortages, senior water right holders get their full allocation before junior right holders receive any.

Since most water in New Mexico is already appropriated, rural buyers typically acquire existing water rights as part of a land purchase; or they must apply to the State Engineer to transfer an existing right or to drill a new well if unappropriated water is available. Domestic wells for single households typically require a permit but are limited to a specific amount of water (e.g., one acre-foot per year).