Okla. Stat. tit. 60, § 60-66: Lateral and subjacent support, right to

Each coterminous owner is entitled to the lateral and subjacent

support which his land receives from the adjoining land, subject to

the right of the owner of the adjoining land to make proper and

usual excavations on the same for purposes of construction, on using

ordinary care and skill, and taking reasonable precautions to

sustain the land of the other, and giving previous reasonable notice

to the other of his intention to make such excavations. R.L. 1910

Sec. 6641.