it all depends on what I am cutting ! blocked firewood or tree length, an skidding... cutting veneer logs it's usually between 35 and 45 trees a day @ 28" average with little limbing I will go through 2.5 gallons of gas and I gallon of b/c oil... mostly it will depend on cutting conditions (clean, frozen wood, chain condition an such). blocking is where it really sucks the juice 1 gallon of gas/b/c oil will produce about 4 cords of firewood(8" to 16") of single cuts... with bigger wood I will do better with the same amount of gas and b/c oil! when I cut semi loads of firewood(BLOCKED FOR BOILERS) for different customers at their sites I will usually go home with extra oils and gas thanks to happy customers..... but to answer your question I will produce 150+ full cords annually for my self to sell during the winter months.....