§119. Well Allowables and Completion
E.l. Each lease shall be provided with sufficient tankage or meters to permit proper gauging of the oil produced. The tanks or meters must be identified by a sign showing the ownership of the tanks or meters and name of the lease from which the oil is being produced. In no case shall meters be the sole means of measuring oil runs from any field. There must be used at least one gauge tank to check the reading of meters. Applications for the use of oil meters in lieu of gauge tanks, shall be the subject of open hearings until rules are formulated
§103. Application to Drill
D. No well shall commence drilling below the surface casing until a sign has been posted on the derrick, and subsequently on the well if it is a producer, showing the operator of record of the well, name of lease, section, township, range, and the serial number under which the permit was issued. The obligation to maintain a legible sign remains until abandonment.
§533. General Operational Requirements for Commercial Facilities and Transfer Stations
E. A sign shall be prepared, displayed and maintained at the entry of each permitted commercial facility or transfer station. Such sign shall utilize a minimum of 1-inch lettering to state the facility name, address, phone number, and site code shall be made applicable to the activities of each facility according to the following example. "This E and P Waste (storage, treatment and/or disposal) facility has been approved for (temporary storage, treatment and/or disposal) of exploration and production waste only and is regulated by the Office of Conservation. Violations shall be reported to the Office of Conservation at (225) 342-5515."
Source: http://www.dnr.louisiana.gov/assets/OC/Rules/43v19_May2015.pdf