The estimates ranged from 153.3 million to 155.3 million bushels.
The median forecast was 154.3 million bushels.
The USDA is scheduled to issue its report at 2 p.m. CDT (1900 GMT) on Monday.
The government reported the US May soy crush at 4.682 million tons, or 156.1 million bushels. US soyoil stocks at the end of June were seen at 2.450 billion lbs, based on an average of estimates from four analysts.
The soyoil estimates ranged from 2.366 billion to 2.490 billion lbs.
The USDA reported end-May soyoil stocks at 2.189 billion lbs.
The National Oilseed Processors Association, a trade group, estimated that its members crushed 145.050 million bushels of soybeans in June, down from 152.280 million during May.
NOPA reported June soyoil stocks at 1.985 billion lbs, down from 1.994 billion in May.