267 Neb. Admin. Code, ch. 3, § 031
All wells drilled for oil and/or gas shall be adequately logged with appropriate mechanical, electrical, or radiation survey devices unless excepted by the Director. If adverse down hole conditions exist which makes the running of adequate survey devices impractical or hazardous, or in the case of open hole completions, twin wells, or other good cause shown, the Director may waive such required survey upon request by the operator.
Logs shall be submitted as one unmarked paper copy, one digital PDF or TIFF (Tagged Image File Format) or digital LAS, or a format approved by the Director of the mechanical, electrical, or radiation survey log, clearly indicating the position of the shoe of the surface casing and including the entire logged interval below the shoe of the surface casing, shall be submitted to the office of the Director within thirty (30) days after such log is run. If an extension of thirty (30) days is needed for filing survey logs, the Director may grant such extension for good cause shown.
Upon written request by the operator, logs of a confidential nature will be held confidential for a period of not more than twelve (12) months. The Director may release such confidential data to health care professionals, emergency responders and public health regulators if the Director deems it is necessary to protect the public's health, safety and welfare.
A driller's log is to be submitted for wells drilled with cable tools. Drill stem tests, copies of other surveys and tests such as core analysis, water analysis, and mud logs, if taken, and the information there from will be submitted on all wells drilled. Any survey or tests conducted by the operator shall be maintained in his files for a period of at least two (2) years. Drilling contractors and well service companies shall maintain a file of surveys and tests conducted for a period of not less than five (5) years for all work performed on any well drilled under the rules and regulations of the Commission.
By agreement with the State Geologist, the Commission will notify operators when samples of a well are requested by the Nebraska Geological Survey. When indicated on Form 2, a systematic interval of sample cuttings shall be saved and submitted to the Nebraska Geological Survey in accordance with their request within ninety (90) days following completion or deepening of a well. When requested in writing, samples shall be kept confidential by the Nebraska Geological Survey for a period of not more than twelve (12) months. Samples submitted may be sent through a recognized sample cutting agency or sent directly to the Nebraska Geological Survey, Conservation and Survey Division, School of Natural Resources, University of Nebraska, Lincoln, Nebraska.
267 Neb. Admin. Code, ch. 3, § 031