Strap 4 : To measure and record the dimensions of oil tanks for the purpose of preparing a tank table to accurately determine the volume of oil in a tank at any measured depth. (ITOGP)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}