Midland officials say that a pumping unit malfunctioned just south of TX 191 east of intersection with South County Road 1275 around 11:30 PM Wednesday.
Oil and water from the well spilled onto the eastbound service road of TX 191 and the main lanes of TX 191 itself.
However, Midland officials say the spilled material posed no danger to the public.
Midland firefighters, Midland County Sheriff's deputies and TX-DOT crews rushed to the scene to clean up the spill.
Part of the eastbound service road of TX 191 was closed temporarily after the spill as crews got rid of the oil and water.