United state 

 - PennWell  2018  85 p. :ill. ; 26 cm. 
 - Petroleum industry and trade. Oliewinning. Gaswinning. PETROLEUM INDUSTRY.  
<br/><br/><label>ISSN: </label>TN 860 .O35/ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SR
<br/><br/><label>LC Class. No.: </label>Oil & gas journal: international petroleum news and technology