Commercial and industrial customers have a choice when it comes to their supplier of natural gas.

Most customers do not know that their natural gas service is essentially composed of a bundle of services. The two main components of natural gas service are: 1) the physical gas (referred to as "supply") and, 2) the delivery of the physical gas through the company's network of underground pipes (referred to as "transportation"). As a regulated utility, Florida City Gas  is not permitted to make any profit on the sale of the physical gas, but only on the delivery service.

The price customers' pay for the physical gas is the exact same amount that the company paid. The Florida Public Service Commission monitors the company's purchases of the physical gas to ensure the company is making prudent supply acquisitions. In fact, the company must ask for permission from the Commission before being allowed to pass along any increases, or decreases, in the cost of the gas supply.

In 1999, Florida City Gas asked for permission to "unbundle" the supply and transportation services for the commercial and industrial customers. By doing so, commercial and industrial customers are now able to shop around for a third party supplier to provide their natural gas supply requirements. As the regulated utility, Florida City Gas still provides and charges for the transportation delivery service of the customer's gas supply to their meter.