If the house had water last month and now has none, start with the pump: breaker, pressure tank, and whether the pump still runs. Many Oklahoma homes need a pump replacement long before they need a new borehole.
If the well has been making less water for years, or a neighbor’s new well changed yours, that is a drilling conversation. This site tags Water Resources Board categories so you can ask a better first question. Tags are not a promise the company takes that job today.
Some firms hold groundwater and pumps. Some hold only one. Geotechnical and geothermal rows are on the same official finder. Leaving them off would be inventing a shorter list. Ask if they drill or service domestic drinking wells.
Sister sites Oklahoma Aerobic Guide and Oklahoma Septic Pumping Guide are different trades. A septic pumper does not replace a well pump. A well driller does not empty a septic tank.
General information for Oklahoma homeowners, not legal advice and not a booking. Compare companies on the directory and confirm the job directly.