The market has been prolonged in China with plenty of imported peanuts, mainly from Sudan, and consequently, prices have gone down.
Nevertheless, prices for peanut oil have not changed much. With prices for other competing oil being solid, there is no reason for peanut oil to go down any further.
Peanut prices in China for B 4151 is trending around $1400/pmt.
The following reports may be of interest to you:
Groundnut Market: Gujarat's Stable Summer Crop and Global Trends
Groundnut Harvest Reveals India's Agrarian Story
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India's Groundnut Market An Endeavour into Challenges and Emerging Subtleties
Groundnut: Where Prices Hit Rock Bottom, But Light Shines Ahead