Petrole-um? | Original Oil in Place (OOIP)

[@ahmedathman3393]

Very Helpful ,thank you

[@raminshahab9400]

THANK U SO MUCH

[@darkook8472]

Why you stopped uploading.. & thank you this is very helpful

[@Ab-rv2ll]

thank u

[@حسينوصفيكاظممحمد]

Are you petroleum engineer

[@phuchovan6097]

the sound is not good I am quite disappointed