Table 9.—Marketed production of natural 
gas 1 
Table 1O.—Crude petroleum production (Thousand 42-gallon barrels and
thousand dollars) 
 
Year 
Production 
Value 
1963                    
58,619 
$161,788 
1964                    
56,777 
151,595 
1965                    
1966                    
56,183 
55,227 
148,437 
146,353 
1967                    
57,147 
155,726 
456 
MINERALS YEARBOOK, 1967 
 
Table 7.—Estimated proved recoverable reserves of crude oil, natural
gas liquids, and 
natural gas 
 
 
Changes 
in proved 
Proved 
 
 
Proved 
reserves, 
Dec. 31~ 1966 
reserves, 
due to 
extensions 
and 
discoveries 
in 1967 1 
reserves 
Dec. 31, 1967 
(production 
was 
deducted) 
Change 
from 
1966 
(percent) 
Crude oil thousand barrelsNaturalgas liquids 2 do~Natural gas million cubic
feet. 
 374,102 
 17,015 
1,668,863 
41,526 
 695 
44,932 
 356,686 
 17,312 
1,597,007 
—5 
+2 
—4 
 1 Excludes revisions. 
 2 Includes condensate, natural gasoline, and LP gases. 
 
 Source: American Gas Association, American Petroleum Institute, and Canadian
Petroleum Association. Proved Reserves of Crude Oil, Natural Gas Liquids
and National Gas. Tulsa Daily World, No. 208, Apr. 8, 1968, p. 22. 
 
Table 8.—Natural gas liquids production 
(Thousand gallons and thousand dollars) 
Year 
Natural gasoline and cycle products 
 
Quantity Value 
LP g 
 
 
Quantity 
ases 
 
 
 Value 
To 
 
 
Quantity 
tal 
 
 
 Value 
1963                            
1964                            
1965                            
1966                            
1967                             
 28,757 $1,755 27,485 1,644 26,582 1,606 23,765 1,483 17,939 1,167 
24,541 
23,277 
22,150 
18,621 
17,794 
$956 
 780 
 975 
 987 
1,085 
53,298 
50,762 
48,732 
42,386 
35,733 
$2,711 
2,424 
2,581 
2,470 
2,252 
 
Year 
Million 
cubic feet 
Value 
(thousands) 
1963                  
1964                  
1965                  
1966                  
1967                  
176,807 
180,428 
166,825 
156,652 
139,497 
$31,825 
31,385 
28,861 
27,257 
24,133 
 1 Coniprises gas either sold or consumed by producers, including losses
in transmission, amounts 
added to storage, and increases in gas pipelines.