Thanks for that, really. I’ve got more reading to do but it appears all are sourced from sedimentary zones.
Page 18 - Petroleum ages in Russia extend over a 1000 million year time period with source rocks ranging from late pre-Cambrian to Miocene.
I didn’t realize there was production sourced from such an early period. Thanks again.
“I didn’t realize there was production sourced from such an early period. Thanks again.”
No problem at all.
I am a petroleum engineer of 41 years and worked a number of years with exploration. Lucky for me some rubbed off, including some Yemen and Wilmington basement drilling.
My belief is like yours that all oil is sourced from sedimentary.