Did some maths maybe someone can verify.
800,000 standard cubic feet
Assuming an ideal gas, a standard cubic foot using the convention of 14.73 psi represents 1.19804 moles (0.0026412 pound moles), equivalent to 0.026853 normal cubic meters (source Wikipedia)
800,000 * .027 = 21,600 cubic meters
21,600 * 0.159 = 3,434 barrels
1 bbl = 0.1589873 m3
Not bad - does not say if its under pump or natural.