Xinglonggong area, closely adjacent to Baxian depression which is the petroleum generation depression, has many advantageous hydrocarbon accumulation conditions. In this area, some industrial petroleum traps were searched in Dongying Formation and 1st Member of Shahejie Formation. The petroleum exploration degree of this area was much lower than those of other places in 3rd Member of Shahejie Formation, which was the deep strata in the Baxian Depression, although a few exploration wells confirmed that there were some favorable elements to hydrocarbon’s accumulation, especially, to the stratigraphic reservoirs. According to the studies of petroleum accumulation elements and trap models, those areas below the break point of Wen’an gentle slope in the east part of Xinglonggong area are considered to be the most profitable place for hydrocarbon exploration.