Michelle Lujan Grisham to expand a buffer zone to prevent oil wells within a mile of schools in New Mexico, writes Adrian Hedden in the Carlsbad Current-Argus. Environmental groups are urging Governor Michelle Lujan Grisham to implement a ban on new oil wells within a mile of schools and phase out existing wells within a designated health buffer zone. Although existing regulations and emission control requirements are in place, advocates emphasize the need for more protective measures, such as establishing a statewide buffer zone around schools. Lujan Grisham stated. The big picture:Living, working, or attending school in close proximity to oil wells can have serious health implications.