Every utility, except as hereinafter provided, engaged in making retail sales of utility services for storage, use, or other consumption in the State of Alabama shall register with the department and give the name and address of its officers and directors, the location of each of its offices in the State of Alabama, the names and addresses of all persons with whom said utility has contracts for furnishing utility services by said utility, the names and addresses of all persons who have purchased utility services from said utility during the then next preceding 12 months, the amounts of the sales prices of all utility services furnished by said utility and such other information as the department may require with respect to matters pertinent to the enforcement of this article; provided, that this section of this article shall not apply to persons holding a license under the provisions of the utility gross receipts tax; provided further, that this section of this article shall not apply to the United States of America or to any agency or department of the United States of America or to any corporation exempted from so registering with the department under the Constitution or laws of the United States of America.