What if oil was discovered off the coast of China in 1935?

There is quite a bit of oil off the coast of China, what if Japan discovers it in 1935? How does this effect WWII? Does Japan even get involved as an oil embargo is doomed to failure? If it does how does a reliable source of oil that close by effect its strategy? Japan is still doomed if it fights of course but will it be in range of the B29s to get nuked in Aug 1945 if the war breaks out as in OTL?
 
Japan might not get involved in WWII, having no need to expand to oil rich regions. Thus we might just get the Commonwealth and USSR vs. the European Axis with the USA and Japan neutral.
 
The technology is dubious. Offshore drilling did exist in the first quarter of the 20th Century, but it seems to have been restricted to depths of about 20 feet. The oil discoveries in the South China Sea are at much greater depth: 4,000 feet and more according to the articles I found about Indian and Chinese operations in that area.
 
According to someone in an earlier thread it was nigh impossible for Daqing field to have been discovered earlier than when it was. This is a pity since it really would have made an interesting TL.
 
http://www.cnpc.com.cn/dq/eng/qyjj/hhls/

Daqing Field is the super giant field. If the Japanese find this say in 1936, then there is plenty of oil,
As long as they can reach it. I'm having trouble finding out how far down oil wells went on land in those days.
and no Pacific WW2.
That's a stretch. They're still militarist and expansionist, and that expansion is going to put them right in the US's face sooner or later.
 
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