Okla. Stat. tit. 17, § 17-519: Notice to surface owner of intent to drill - Exceptions -

Duty to negotiate surface damages.

Before entering upon a site for brine well drilling, except in

instances where there are non-state resident surface owners, non-

state resident surface tenants, unknown heirs, imperfect titles,

surface owners, or surface tenants whose whereabouts cannot be

ascertained with reasonable diligence, the operator shall give to

the surface owner a written notice of his intent to drill containing

a designation of the proposed location and the approximate date that

the operator proposes to commence drilling.

Such notice shall be given in writing by certified mail to the

surface owner. If the operator makes an affidavit that he has

conducted a search with reasonable diligence and the whereabouts of

the surface owner cannot be ascertained or such notice cannot be

delivered, then constructive notice of the intent to drill may be

given in the same manner as provided for the notice of proceedings

to appoint appraisers set forth in Section 22 of this act.

Within five (5) days of the date of delivery or service of the

notice of intent to drill, it shall be the duty of the operator and

the surface owner to enter into good faith negotiations to determine

the surface damages.