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Fair Value Measurements
3 Months Ended
Dec. 31, 2019
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
 
The FASB authoritative guidance regarding fair value measurements establishes a fair-value hierarchy and prioritizes the inputs used in valuation techniques that measure fair value. Those inputs are prioritized into three levels. Level 1 inputs are unadjusted quoted prices in active markets for assets or liabilities that the Company can access at the measurement date. Level 2 inputs are inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly at the measurement date. Level 3 inputs are unobservable inputs for the asset or liability at the measurement date. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment, and may affect the valuation of fair value assets and liabilities and their placement within the fair value hierarchy levels.
 
The following table sets forth, by level within the fair value hierarchy, the Company's financial assets and liabilities (as applicable) that were accounted for at fair value on a recurring basis as of December 31, 2019 and September 30, 2019.  Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The fair value presentation for over the counter swaps combines gas and oil swaps because a significant number of the counterparties enter into both gas and oil swap agreements with the Company.  
Recurring Fair Value Measures
At fair value as of December 31, 2019
(Thousands of Dollars)   
Level 1
 
Level 2
 
Level 3
 
Netting Adjustments(1)
 
Total(1)
Assets:
 

 
 

 
 

 
 

 
 

Cash Equivalents – Money Market Mutual Funds
$
20,924

 
$

 
$

 
$

 
$
20,924

Derivative Financial Instruments:
 

 
 

 
 

 
 

 
 

Commodity Futures Contracts – Gas
2,096

 

 

 
(2,096
)
 

Over the Counter Swaps – Gas and Oil

 
46,686

 

 
(5,031
)
 
41,655

Foreign Currency Contracts

 
118

 

 
(1,204
)
 
(1,086
)
Other Investments:
 

 
 

 
 

 
 

 
 

Balanced Equity Mutual Fund
36,740

 

 

 

 
36,740

Fixed Income Mutual Fund
62,220

 

 

 

 
62,220

Common Stock – Financial Services Industry
933

 

 

 

 
933

Hedging Collateral Deposits
9,666

 

 

 

 
9,666

Total                                           
$
132,579

 
$
46,804

 
$

 
$
(8,331
)
 
$
171,052

 
 
 
 
 
 
 
 
 
 
Liabilities:
 

 
 

 
 

 
 

 
 

Derivative Financial Instruments:
 

 
 

 
 

 
 

 
 

Commodity Futures Contracts – Gas
$
7,741

 
$

 
$

 
$
(2,096
)
 
$
5,645

Over the Counter Swaps – Gas and Oil

 
5,524

 

 
(5,031
)
 
493

Foreign Currency Contracts

 
1,348

 

 
(1,204
)
 
144

Total
$
7,741

 
$
6,872

 
$

 
$
(8,331
)
 
$
6,282

Total Net Assets/(Liabilities)
$
124,838

 
$
39,932

 
$

 
$

 
$
164,770

 
Recurring Fair Value Measures
At fair value as of September 30, 2019
(Thousands of Dollars)   
Level 1
 
Level 2
 
Level 3
 
Netting Adjustments(1)
 
Total(1)
Assets:
 

 
 

 
 

 
 

 
 

Cash Equivalents – Money Market Mutual Funds
$
10,521

 
$

 
$

 
$

 
$
10,521

Derivative Financial Instruments:
 

 
 

 
 

 
 

 
 

Commodity Futures Contracts – Gas
2,055

 

 

 
(2,055
)
 

Over the Counter Swaps – Gas and Oil

 
52,076

 

 
(1,483
)
 
50,593

Foreign Currency Contracts

 
5

 

 
(2,052
)
 
(2,047
)
Other Investments:
 

 
 

 
 

 
 

 
 

Balanced Equity Mutual Fund
40,660

 

 

 

 
40,660

Fixed Income Mutual Fund
62,339

 

 

 

 
62,339

Common Stock – Financial Services Industry
844

 

 

 

 
844

Hedging Collateral Deposits
6,832

 

 

 

 
6,832

Total                                           
$
123,251

 
$
52,081

 
$

 
$
(5,590
)
 
$
169,742

 
 
 
 
 
 
 
 
 
 
Liabilities:
 

 
 

 
 

 
 

 
 

Derivative Financial Instruments:
 

 
 

 
 

 
 

 
 

Commodity Futures Contracts – Gas
$
7,149

 
$

 
$

 
$
(2,055
)
 
$
5,094

Over the Counter Swaps – Gas and Oil

 
1,671

 

 
(1,483
)
 
188

     Foreign Currency Contracts

 
2,344

 

 
(2,052
)
 
292

Total
$
7,149

 
$
4,015

 
$

 
$
(5,590
)
 
$
5,574

Total Net Assets/(Liabilities)
$
116,102

 
$
48,066

 
$

 
$

 
$
164,168


(1) 
Netting Adjustments represent the impact of legally-enforceable master netting arrangements that allow the Company to net gain and loss positions held with the same counterparties. The net asset or net liability for each counterparty is recorded as an asset or liability on the Company’s balance sheet.
 
Derivative Financial Instruments
 
At December 31, 2019 and September 30, 2019, the derivative financial instruments reported in Level 1 consist of natural gas NYMEX and ICE futures contracts used by NFR (included in the All Other category). Hedging collateral deposits of $9.7 million (at December 31, 2019) and $6.8 million (at September 30, 2019), which were associated with these futures contracts, have been reported in Level 1 as well. The derivative financial instruments reported in Level 2 at December 31, 2019 and September 30, 2019 consist of natural gas price swap agreements used in the Company’s Exploration and Production segment and in its NFR operations, crude oil price swap agreements used in the Company’s Exploration and Production segment, basis hedge swap agreements used by NFR and foreign currency contracts used in the Company's Exploration and Production segment. The fair value of the Level 2 price swap agreements is based on an internal, discounted cash flow model that uses observable inputs (i.e. LIBOR based discount rates and basis differential information, if applicable, at active natural gas and crude oil trading markets). The fair value of the Level 2 foreign currency contracts is determined using the market approach based on observable market transactions of forward Canadian currency rates. 
 
The accounting rules for fair value measurements and disclosures require consideration of the impact of nonperformance risk (including credit risk) from a market participant perspective in the measurement of the fair value of assets and liabilities.  At December 31, 2019, the Company determined that nonperformance risk would have no material impact on its financial position or results of operation.  To assess nonperformance risk, the Company considered information such as any applicable collateral posted, master netting arrangements, and applied a market-based method by using the counterparty's (assuming the derivative is in a gain position) or the Company’s (assuming the derivative is in a loss position) credit default swaps rates.
 
For the quarters ended December 31, 2019 and December 31, 2018, there were no assets or liabilities measured at fair value and classified as Level 3. For the quarters ended December 31, 2019 and December 31, 2018, no transfers in or out of Level 1 or Level 2 occurred.