The Director may require sub-surface pressure measurements on a sufficient number of wells in any pool to provide adequate data for establishing maximum efficient rates of production (M. E. R.). Whenever a sub-surface pressure measurement is to be made in a well, such well shall remain completely shut-in for at least twenty-four (24) hours prior to the test. Tests may be witnessed by representatives of the offset operators.
267 Neb. Admin. Code, ch. 3, § 026