XML 50 R19.htm IDEA: XBRL DOCUMENT v3.20.1
Fair Value Measurements (Tables)
 3 Months Ended
Jan. 31, 2020
Fair Value Disclosures [Abstract]  
Schedule of Assets and Liabilities Measured at Fair Value
The following table provides information on those assets (liabilities) measured at fair value on a recurring basis.
 
 
Fair Value as of
 
Fair Value Measurement Using
 
 
January 31, 2020
 
Level 1
 
Level 2
 
Level 3
Derivative instruments - commodities
 


 


 


 


     In gain position
 
$
78,903

 
$
76,025

 
$
2,878

 
$
—

     In loss position
 
(883,788
)
 
(99,130
)
 
(784,658
)
 
—


 
 
Fair Value as of
 
Fair Value Measurement Using
 
 
October 31, 2019
 
Level 1
 
Level 2
 
Level 3
Derivative instruments - commodities
 


 


 


 


     In gain position
 
$
124,069

 
$
4,538

 
$
119,531

 
$
—

     In loss position
 
(775,887
)
 
(4,375
)
 
(771,512
)
 
—