Either Putin must be very desperate to discuss this with his secretary in the White House or there is something I don't see.
Trump reportedly agreed with Putin to "immediately" supply more than 0.3m tons of diesel fuel into the U.S. and global markets, another 0.5m tons in November, followed by another 1m ton and then an additional 3m tons of diesel "within a short period of time," based on the condition of Russian refineries.
That's a total of 4,8m tons over the next months. Russia measures diesel quantities in tons, so the 4.8m tons are equal to a bit more than 35.5m barrels, the measure used by world markets.
Even if this agreement materializes - which is everything but sure imho - it must be a complete nothing burger.
Refineries in the U.S. are churning out some four to five million barrels every day, according to EIA, the U.S. Energy Information Administration. The majority of this volume - around 3.6m barrels - is consumed domestically, the rest is exported.
So even if Russia is able to deliver this volume of 35m barrels, the volume is equivalent to what is consumed domestically in the U.S. within less than just 10 days. In the world market this volume is next to nothing.
This must be a nothing burger imo. But I am not an expert for oil markets, so maybe someone with more expertise can give me a hint.