Zion Oil & Gas Inc (ZNOG)

[KyOil]

In comparing reservoir depletion rates its important to distinguish between
a. OOIP - Original Oil In Place, and
b. Recoverable Oil, which is a % of OOIP

Without the water drive that Aramco is now using in Ghawar, the original recoverable oil was probably 15% of the OOIP (using primary recovery). The recoverable oil is now expected to be 50% of OOIP (using secondary recovery). So, the "reservoir" of interest (recoverable oil) could have increased by 3x simply with the use of a "secondary recovery" method, i.e. water drive.

The production rates at Ghawar are declining, which is evidence against abiotic recharging of the reservoir. With abiotic, the oil in place will be replenished and the production rate should be steady, or in the best case actually rise with time.

There are examples of abiotic reservoir charging. Here is one off the coast of Louisiana. Notice how production rates went UP after trending down at first. Production rates going up is a key sign.
https://www.usnews.com/opinion/blogs/on-energy/2011/09/14/abiotic-oil-a-theory-worth-exploring