SAN FRANCISCO — BizBuySell.com, a leading online marketplace for business-for-sale listings, has released its second-quarter 2011 data on how convenience stores and gas stations across the nation are selling.

While closed transactions across all business types showed a healthy increase in second-quarter 2011, median revenue of the businesses sold decreased by about 6%. C-stores and gas stations were no exception.

The current median asking price of c-stores for sale is $170,000. At the end of second-quarter 2010, the median asking price for a c-store was $320,000.

The second-quarter 2011 c-stores listed with BizBuySell.com had a median revenue of $675,000, down from $720,000 at this same time last year. The median cash flow–the money that comes out of the business over the course of a year–was $100,000 last quarter, remained consistent with median cash flows of $100,000 last year. According to BizBuySell, c-store owners will typically ask for, on average, a revenue multiple of 0.37 (changed from 0.55 year over year) and a cash flow multiple of 2.28 (changed from 3.39 year over year).

The current median asking price of gas stations for sale is $474,000. At the end of second-quarter 2010, the median asking price for a gas station was $800,000.

The second-quarter 2011 gas stations listed with BizBuySell.com had a median revenue of $975,000, down from $2.6 million at this same time last year. The median cash flow was $160,821 last quarter, as compared with median cash flows of $157,200 last year. According to BizBuySell, gas station owners will typically ask for, on average, a revenue multiple of 1.08 (as compared to 0.55 year over year) and a cash flow multiple of 4.61 (changed from 6.18 year over year).

The data is based on more than 500 c-store businesses and more than 500 gas stations listed at BizBuySell.com. The listings that drive these statistics include listings from local business brokers, as well as “for sale by owner” listings that have been listed by the business owner without the assistance of a business broker.

Click here to view c-store listings, and click here to view gas stations listings. Business owners interested in selling a business, click here.