The Texas Supreme Court has strengthened protections for landowners who don’t have rights to the water underneath their property.

In a ruling Friday, the state’s highest civil court said Texas’ “accommodation doctrine” should also apply to groundwater, in addition to oil and gas.

The decades-old doctrine requires mineral owners — considered the dominant estate — to accommodate the surface owner’s existing use of the land if at all possible. While it doesn’t always stop drilling or pumping operations, the doctrine gives surface landowners some say regarding the circumstances.

The decision favors a South Plains ranch, Coyote Lake, which sued the city of Lubbock in 2012 for trying to expand an existing water well field on the 26,600-acre property.

A Bailey County district court sided with the ranch in late 2013, invoking the accommodation doctrine in granting a temporary injunction against the city, which had mowed a path to reach the well field without permission from the ranch. The Amarillo-based 7th Court of Appeals overturned that decision last summer but said the Legislature or state Supreme Court was free to extend the doctrine if it so pleased.

The state Supreme Court heard oral arguments in the case in October.

“The accommodation doctrine, based on the principle that conflicting estates should act with due regard for each other’s rights, has provided a sound and workable basis for resolving conflicts between ownership interests,” according to Friday’s unanimous ruling, penned by Chief Justice Nathan Hecht. “The paucity of reported cases applying the doctrine suggests that it is well-understood and not often disputed. We have applied the doctrine only when mineral interests are involved. But similarities between mineral and groundwater estates, as well as in their conflicts with surface estates, persuade us to extend the accommodation doctrine to groundwater interests.”

Agriculture groups urged the nine justices to side with the ranch and extend the accommodation doctrine while a Panhandle-based municipal water authority argued against it would be “unnecessary and inappropriate.” The Canadian River Municipal Water Authority told the court in an amicus brief “there is no legal authority, historical precedent, or need.”

Richard Thorpe, president of the Texas and Southwestern Cattle Raisers Association, hailed the ruling as “a major victory for landowners across Texas” in a statement Friday.

Disclosure: The Texas and Southwestern Cattle Raisers Association has been a financial supporter of The Texas Tribune. A complete list of Tribune donors and sponsors can be viewed here.