Oklahoma Water Resources Board
The license is a category, not a review.
The Oklahoma Water Resources Board licenses commercial well drilling and pump installation so well construction protects groundwater. The public rule is Oklahoma Administrative Code 785:35-3-1. A person who drills, plugs, or reconditions a well for pay in this state, or who installs a water well pump for pay, is supposed to hold a Board license for that activity. This is general information, not legal advice.
The license states the categories on its face. The rule lists five activity groups:
- Groundwater wells, including test drilling and fresh water observation wells, and plugging those wells. A new house well starts in this group. On this directory the tag is groundwater.
- Monitoring wells, site assessment wells, and geotechnical borings. That is why soil and test firms share the finder with house-well shops. Ask before you treat that row as a drinking-water driller.
- Commercial installation of water well pumps. A pumps tag is the pump job. It is not, by itself, a new borehole.
- Heat exchange wells and geothermal wells.
- Marginal water wells. The rule says this category also requires groundwater certification for at least two years.
The Board’s license application page also names deep anode groundbeds for cathodic protection, and pump work that includes windmills and solar installations. Those are not the first call for a house well unless the company says they take a private domestic well. The same page says a license applicant needs qualifying experience in the category and a passing score of 70 percent on that exam. We do not publish anyone’s score, and we do not print license numbers. The finder rows we republish show the name, the phone, the mailing city, and the categories.
Each licensed firm must have at least one operator with Board certification. An operator certification by itself is not a firm license, and the operator is not supposed to do work the firm license does not cover. Reconditioning a well for pay counts as commercial drilling under the same rule. A pump that died on a well that still makes water is still a pump conversation first.
The Board’s e-filing policy says a completion or plugging report is due within 60 days after a new well, a plugged well, or a reconditioned well. Ask who files that report and ask for a copy for the house file. The Board also publishes a notice of intent to drill a groundwater well. Confirm what applies to your land when you call. Licenses and operator certifications expire on June 30 on a one- or two-year cycle. Ask the shop to confirm the category you need is current.
A phone area code does not prove or disprove the license. S&S Water Well Drilling LLC lists an Oklahoma City mailing city and a 918 number on the roster checked 2026-08-18. All Out Pump Service And Drilling is published as pumps and groundwater. Grateful Drilling, LLC is published as pumps, geotechnical, and groundwater. Those words are categories, not reviews. Check the source on the Water Resources Board finder. The well-driller program lists its office at 3800 North Classen Boulevard, Oklahoma City, and the public phone 405-530-8800. Read how we check the list.