Heating oil prices can fluctuate widely over time and by location. 1  From January 2005 to March 2010, the average price nationwide was $1.95-$2.95 a gallon; from January to March 2012 the average weekly price was $3.85-$4.12. 2  A building/mechanical permit is usually required to replace a furnace.
Quick Answer. A MasterCard has a total of 16 digits. MasterCard, as well as most major credit card systems, use the ANSI Standard X4.13-1983 system, in which each digit identifies a particular attribute of the card. . Keep Learning.
Visa: ^4[0-9]{6,}$ Visa card numbers start with a 4. MasterCard: ^5[1-5][0-9]{5,}$ MasterCard numbers start with the numbers 51 through 55, but this will only detect MasterCard credit cards; there are other cards issued using the MasterCard system that do not fall into this IIN range.American Express: ^3[47][0-9]{5,}$ American Express card numbers start with 34 or 37.asterCard: ^5[1-5][0-9]{5,}$ MasterCard numbers start with the numbers 51 through 55, but this will only detect MasterCard credit cards; there are other cards issued using the MasterCard system that do not fall into this IIN range.