Sources of Subsurface Information 1153 



6. Upon 30 days' notice the service may be discontinued by either 

 party. 



Summary of Operations From January i, 1948 to December 31, 1948 



Total number of logs 437 



Average number of logs monthly 36.4 



Total footage 599,416 



Average footage monthly 49,951 



Average footage of each log 1,372 



Total number of sample tops reported 2,834 



Average number of sample tops each log 6.5 



Total cost of service at $150.00 monthly $1,800.00 



Average cost per log to subscribers $4.12 



Petroleum Information, Inc. 



Continental Oil Building, Denver, Colorado 



(Casper, Wyoming) 



Petroleum Information, Inc., was established in 1928 as an oil- and 

 gas-data service covering the states of Wyoming, Colorado, Montana, 

 Utah, North and South Dakota, and Idaho, and western Nebraska and 

 northern New Mexico. 



A complete Rocky Mountain reporting service covering all drilling 

 and leasing operations in the region is published, as well as special news 

 bulletins through the week. The reports are accurate as to geologic data, 

 and maps of special areas are a weekly feature of the service. The reports 

 are in standard use by oil operators interested in the region. Well-comple- 

 tion-data cards are issued as a part of the confidential reporting service. 



An annual "Resume of Rocky Mountain Oil and Gas Operations" 

 is published by the company, listing statistical and current information 

 on activities. Well completions, production data, and geophysical and 

 other information are contained in the volume. 



The company has a large collection of drillers' and sample logs on 

 wells drilled in the Rocky Mountain region. Copies of these logs are 

 available at a nominal charge. Area and structure maps of the region 

 are sold at the Denver office. These are predominantly of maps of known 

 surface structure and producing fields and oil and gas state maps of the 

 region. 



Copies of electric logs of wells are reproduced by the company at 

 the Casper office; some of the logs are available for general sale, and 

 some are restricted to the use of operating companies in the Rocky 

 Mountain region. 



Land information is furnished through the company, and special 

 land-block books are available for sale to subscribers of the reporting 

 service. Land-block outlines are frequently carried in the weekly report 

 service. 



