Oil companies are always busy. The drillers need to keep track of the amount of pipe they are putting down the hole. The well operators need to keep track of yield, and what the gauges say. The supervisors need to keep track of employees, and their work hours.
These 2 Tally Books are vital to the oil industry. They are weather-proof, and can fit into your shirt pocket or pants pocket.
The flexible book 3308 is great for a back pocket. It bends when you do.
The popular 3400 tally book is stiff, to make it easy to jot your notes. It is better suited to fit in your shirt or jacket pocket.
Both of these books are vital to the oil industry, and help to make it run smoothly.