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Capitalization And Short-Term Borrowings
12 Months Ended
Sep. 30, 2016
Capitalization And Short-Term Borrowings [Abstract]  
Capitalization And Short-Term Borrowings
Capitalization and Short-Term Borrowings
Summary of Changes in Common Stock Equity
 
Common Stock
 
Paid In
Capital
 
Earnings
Reinvested
in the
Business
 
Accumulated
Other
Comprehensive
Income (Loss)
Shares
 
Amount
 
 
(Thousands, except per share amounts)
Balance at September 30, 2013
83,662

 
$
83,662

 
$
687,684

 
$
1,442,617

 
$
(19,234
)
Net Income Available for Common Stock
 
 
 
 
 
 
299,413

 
 
Dividends Declared on Common Stock ($1.52 Per Share)
 
 
 
 
 
 
(127,669
)
 
 
Other Comprehensive Income, Net of Tax
 
 
 
 
 
 
 
 
15,255

Share-Based Payment Expense(2)
 
 
 
 
10,654

 
 
 
 
Common Stock Issued Under Stock and Benefit Plans(1)
495

 
495

 
17,806

 
 
 
 
Balance at September 30, 2014
84,157

 
84,157

 
716,144

 
1,614,361

 
(3,979
)
Net Income (Loss) Available for Common Stock
 
 
 
 
 
 
(379,427
)
 
 
Dividends Declared on Common Stock ($1.56 Per Share)
 
 
 
 
 
 
(131,734
)
 
 
Other Comprehensive Income, Net of Tax
 
 
 
 
 
 
 
 
97,351

Share-Based Payment Expense(2)
 
 
 
 
2,207

 
 
 
 
Common Stock Issued Under Stock and Benefit Plans(1)
437

 
437

 
25,923

 
 
 
 
Balance at September 30, 2015
84,594

 
84,594

 
744,274

 
1,103,200

 
93,372

Net Income (Loss) Available for Common Stock
 
 
 
 
 
 
(290,958
)
 
 
Dividends Declared on Common Stock ($1.60 Per Share)
 
 
 
 
 
 
(135,881
)
 
 
Other Comprehensive Loss, Net of Tax
 
 
 
 
 
 
 
 
(99,012
)
Share-Based Payment Expense(2)
 
 
 
 
4,843

 
 
 
 
Common Stock Issued Under Stock and Benefit Plans(1)
525

 
525

 
22,047

 
 
 
 
Balance at September 30, 2016
85,119

 
$
85,119

 
$
771,164

 
$
676,361

(3)
$
(5,640
)
 
(1)
Paid in Capital includes tax benefits of $1.9 million, $9.1 million and $4.6 million for September 30, 2016, 2015 and 2014, respectively, related to stock-based compensation.
(2)
Paid in Capital includes compensation costs associated with stock option, SARs, performance share and/or restricted stock awards. The expense is included within Net Income Available For Common Stock, net of tax benefits.
(3)
The availability of consolidated earnings reinvested in the business for dividends payable in cash is limited under terms of the indentures covering long-term debt. At September 30, 2016, $532.2 million of accumulated earnings was free of such limitations.
Common Stock
The Company has various plans which allow shareholders, employees and others to purchase shares of the Company common stock. The National Fuel Gas Company Direct Stock Purchase and Dividend Reinvestment Plan allows shareholders to reinvest cash dividends and make cash investments in the Company’s common stock and provides investors the opportunity to acquire shares of the Company common stock without the payment of any brokerage commissions in connection with such acquisitions. The 401(k) Plans allow employees the opportunity to invest in the Company common stock, in addition to a variety of other investment alternatives. Generally, at the discretion of the Company, shares purchased under these plans are either original issue shares purchased directly from the Company or shares purchased on the open market by an independent agent. During 2016, the Company issued 147,056 original issue shares of common stock for the Direct Stock Purchase and Dividend Reinvestment Plan and 118,864 original issue shares of common stock for the Company's 401(k) plans.
During 2016, the Company issued 293,841 original issue shares of common stock as a result of stock option and SARs exercises and 70,233 original issue shares of common stock for restricted stock units that vested. Holders of stock options, SARs, restricted share awards or restricted stock units will often tender shares of common stock to the Company for payment of option exercise prices and/or applicable withholding taxes. During 2016, 88,675 shares of common stock were tendered to the Company for such purposes. The Company considers all shares tendered as cancelled shares restored to the status of authorized but unissued shares, in accordance with New Jersey law. There were also 35,000 restricted stock award shares forfeited during 2016.
The Company also has a director stock program under which it issues shares of Company common stock to the non-employee directors of the Company who receive compensation under the Company’s 2009 Non-Employee Director Equity Compensation Plan, as partial consideration for the directors’ services during the fiscal year. Under this program, the Company issued 18,184 original issue shares of common stock during 2016.
Shareholder Rights Plan
In 1996, the Company’s Board of Directors adopted a shareholder rights plan (Plan). The Plan has been amended several times since it was adopted and is now embodied in an Amended and Restated Rights Agreement effective December 4, 2008, a copy of which was included as an exhibit to the Form 8-K filed by the Company on December 4, 2008.
Pursuant to the Plan, the holders of the Company’s common stock have one right (Right) for each of their shares. Each Right is initially evidenced by the Company’s common stock certificates representing the outstanding shares of common stock.
The Rights have anti-takeover effects because they will cause substantial dilution of the Company’s common stock if a person (an Acquiring Person) attempts to acquire the Company on terms not approved by the Board of Directors.
The Rights become exercisable upon the occurrence of a Distribution Date as described below, but after a Distribution Date, Rights that are owned by an Acquiring Person will be null and void. At any time following a Distribution Date, each holder of a Right may exercise its right to receive, upon payment of an amount calculated under the Rights Agreement, common stock of the Company (or, under certain circumstances, other securities or assets of the Company) having a value equal to two times the amount paid to exercise the Right. However, the Rights are subject to redemption or exchange by the Company prior to their exercise as described below.
A Distribution Date would occur upon the earlier of (i) ten days after the public announcement that a person or group has acquired, or obtained the right to acquire, beneficial ownership of the Company’s common stock or other voting stock (including Synthetic Long Positions as defined in the Plan) having 10% or more of the total voting power of the Company’s common stock and other voting stock or (ii) ten days after the commencement or announcement by a person or group of an intention to make a tender or exchange offer that would result in that person acquiring, or obtaining the right to acquire, beneficial ownership of the Company’s common stock or other voting stock having 10% or more of the total voting power of the Company’s common stock and other voting stock.
In certain situations after a person or group has acquired beneficial ownership of 10% or more of the total voting power of the Company’s stock as described above, each holder of a Right will have the right to receive, upon exercise of the Right, common stock of the acquiring company having a value equal to two times the amount paid to exercise the Right. These situations would arise if the Company is acquired in a merger or other business combination or if 50% or more of the Company’s assets or earning power is sold or transferred.
At any time prior to the end of the business day on the tenth day following the Distribution Date, the Company may redeem the Rights in whole, but not in part, at a price of $0.005 per Right, payable in cash or stock. A decision to redeem the Rights requires the vote of 75% of the Company’s full Board of Directors. Also, at any time following the Distribution Date, 75% of the Company’s full Board of Directors may vote to exchange the Rights, in whole or in part, at an exchange rate of one share of common stock, or other property deemed to have the same value, per Right, subject to certain adjustments.
Upon exercise of the Rights, the Company may need additional regulatory approvals to satisfy the requirements of the Rights Agreement. The Rights will expire on July 31, 2018, unless earlier than that date, they are exchanged or redeemed or the Plan is amended to extend the expiration date.
Stock Option and Stock Award Plans
The Company has various stock option and stock award plans which provide or provided for the issuance of one or more of the following to key employees: incentive stock options, nonqualified stock options, SARs, restricted stock, restricted stock units, performance units or performance shares.
Stock-based compensation expense for the years ended September 30, 2016, 2015 and 2014 was approximately $4.8 million, $2.1 million and $10.5 million, respectively. Stock-based compensation expense is included in operation and maintenance expense on the Consolidated Statements of Income. The total income tax benefit related to stock-based compensation expense during the years ended September 30, 2016, 2015 and 2014 was approximately $1.9 million, $0.9 million and $4.3 million, respectively. A portion of stock-based compensation expense is subject to capitalization under IRS uniform capitalization rules. Stock-based compensation of $0.1 million, $0.1 million and $0.1 million was capitalized under these rules during the years ended September 30, 2016, 2015 and 2014, respectively.
The Company realized excess tax benefits related to stock-based compensation of $1.6 million, $7.7 million, and $3.1 million for the fiscal years ended September 30, 2016, 2015 and 2014, respectively. These amounts are recorded in Paid in Capital when they meet the realization requirements of the authoritative guidance on stock-based compensation.
Stock Options
Transactions involving option shares for all plans are summarized as follows:
 
Number of
Shares Subject
to Option
 
Weighted
Average
Exercise Price
 
Weighted
Average
Remaining
Contractual
Life (Years)
 
Aggregate
Intrinsic
Value
(In thousands)
Outstanding at September 30, 2015
306,500

 
$
37.73

 
 
 
 
Granted in 2016

 
$

 
 
 
 
Exercised in 2016
(287,500
)
 
$
37.62

 
 
 
 
Forfeited in 2016

 
$

 
 
 
 
Outstanding at September 30, 2016
19,000

 
$
39.48

 
0.19
 
$
277

Option shares exercisable at September 30, 2016
19,000

 
$
39.48

 
0.19
 
$
277

Option shares available for future grant at September 30, 2016(1)
2,714,005

 
 
 
 
 
 
 
(1)
Includes shares available for SARs, restricted stock and performance share grants.
The total intrinsic value of stock options exercised during the years ended September 30, 2016, 2015 and 2014 totaled approximately $4.1 million, $5.1 million, and $13.7 million, respectively. For 2016, 2015 and 2014, the amount of cash received by the Company from the exercise of such stock options was approximately $8.0 million, $5.6 million, and $7.4 million, respectively. The Company last granted stock options in fiscal 2007 and all outstanding stock options have been fully vested since fiscal 2010.
SARs
Transactions involving SARs for all plans are summarized as follows:
 
Number of
Shares Subject
To Option
 
Weighted
Average
Exercise Price
 
Weighted
Average
Remaining
Contractual
Life (Years)
 
Aggregate
Intrinsic
Value
(In thousands)
Outstanding at September 30, 2015
1,732,784

 
$
48.70

 
 
 
 
Granted in 2016

 
$

 
 
 
 
Exercised in 2016
(96,796
)
 
$
52.02

 
 
 
 
Forfeited in 2016

 
$

 
 
 
 
Expired in 2016
(45,000
)
 
$
59.48

 
 
 
 
Outstanding at September 30, 2016
1,590,988

 
$
48.19

 
3.94
 
$
9,356

SARs exercisable at September 30, 2016
1,585,988

 
$
48.16

 
3.93
 
$
9,369

The Company did not grant any SARs during the years ended September 30, 2015 and 2014. The Company’s SARs include both performance based and non-performance based SARs, but the performance conditions associated with the performance based SARs at the time of grant have all been subsequently met. The SARs are considered equity awards under the current authoritative guidance for stock-based compensation. The accounting for SARs is the same as the accounting for stock options.
The total intrinsic value of SARs exercised during the years ended September 30, 2016, 2015 and 2014 totaled approximately $0.4 million, $2.0 million, and $8.4 million, respectively. For the years ended September 30, 2016, 2015 and 2014, 113,082 SARs, 157,386 SARs and 323,188 SARs, respectively, became fully vested. The total fair value of the SARs that became vested during each of the years ended September 30, 2016, 2015 and 2014 was approximately $1.2 million, $1.7 million and $3.8 million, respectively. As of September 30, 2016, unrecognized compensation expense related to SARs totaled less than $0.1 million, which will be recognized over a weighted average period of 7 months.
 
 
 
 
 
 

Restricted Share Awards
Transactions involving restricted share awards for all plans are summarized as follows: 
 
Number of
Restricted
Share Awards
 
Weighted Average
Fair Value per
Award
Outstanding at September 30, 2015
60,000

 
$
47.53

Granted in 2016

 
$

Vested in 2016
(5,000
)
 
$
48.41

Forfeited in 2016
(35,000
)
 
$
47.46

Outstanding at September 30, 2016
20,000

 
$
47.46


The Company did not grant any restricted share awards (non-vested stock as defined by the current accounting literature) during the years ended September 30, 2015 and 2014. As of September 30, 2016, unrecognized compensation expense related to restricted share awards totaled approximately $0.3 million, which will be recognized over a weighted average period of 2.6 years.
Vesting restrictions for the 20,000 outstanding shares of non-vested restricted stock at September 30, 2016 will lapse in 2021.
Restricted Stock Units
Transactions involving non-performance based restricted stock units for all plans are summarized as follows:
 
Number of
Restricted
Stock Units
 
Weighted Average
Fair Value per
Award
Outstanding at September 30, 2015
236,948

 
$
59.04

Granted in 2016
101,943

 
$
35.89

Vested in 2016
(70,233
)
 
$
58.57

Forfeited in 2016
(29,507
)
 
$
56.18

Outstanding at September 30, 2016
239,151

 
$
49.67


The Company also granted 88,899 and 82,151 non-performance based restricted stock units during the years ended September 30, 2015 and 2014, respectively. The weighted average fair value of such non-performance based restricted stock units granted in 2015 and 2014 was $64.04 per share and $65.24 per share, respectively. As of September 30, 2016, unrecognized compensation expense related to non-performance based restricted stock units totaled approximately $4.5 million, which will be recognized over a weighted average period of 1.6 years.
Vesting restrictions for the non-performance based restricted stock units outstanding at September 30, 2016 will lapse as follows: 2017 — 64,036 units; 2018 — 44,817 units; 2019 — 53,232 units; 2020 - 43,757 units; and 2021 - 33,309 units.
Transactions involving performance based restricted stock units for all plans are summarized as follows:
 
Number of Performance Based
Restricted Stock Units
 
Weighted Average
Fair Value per
Award
Outstanding at September 30, 2015
233,487

 
$
49.61

Granted in 2016

 
$

Vested in 2016

 
$

Forfeited in 2016

 
$

Canceled in 2016
(233,487
)
 
$
49.61

Outstanding at September 30, 2016

 
$


The Company did not grant any performance based restricted stock units during the years ended September 30, 2015 and 2014. The performance based restricted stock units outstanding at September 30, 2015 had to meet a performance condition over the performance cycle of October 1, 2012 to September 30, 2015. The performance condition over the performance cycle, generally stated, was the Company’s total return on capital as compared to the same metric for companies in the Natural Gas Distribution and Integrated Natural Gas Companies group as calculated and reported in the Monthly Utility Reports of AUS, Inc., a leading industry consultant. The number of performance based restricted stock units that were to vest depended upon the Company’s performance relative to the report group and not upon the absolute level of return achieved by the Company. Based on the significant loss that the Company experienced during 2015, management determined as of September 30, 2015 that the performance conditions associated with the performance based restricted stock units outstanding at September 30, 2015 would not be met. Accordingly, the cumulative stock-based compensation expense of approximately $8.0 million associated with such restricted stock units was reversed during 2015, and during the year ended September 30, 2016, the restricted stock units were canceled.
Performance Shares
Transactions involving performance shares for all plans are summarized as follows:
 
Number of
Performance
Shares
 
Weighted Average
Fair Value per
Award
Outstanding at September 30, 2015
204,742

 
$
66.17

Granted in 2016
309,996

 
$
30.71

Vested in 2016

 
$

Forfeited in 2016
(76,504
)
 
$
43.89

Outstanding at September 30, 2016
438,234

 
$
44.98


The Company granted 107,044 and 116,090 performance shares during the years ended September 30, 2015 and 2014, respectively. The weighted average grant date fair value of such performance shares granted in 2015 and 2014 was $65.26 per share and $67.16 per share, respectively. As of September 30, 2016, unrecognized compensation expense related to performance shares totaled approximately $7.0 million, which will be recognized over a weighted average period of 1.4 years. Vesting restrictions for the outstanding performance shares at September 30, 2016 will lapse as follows: 2017 - 86,968 shares; 2018 - 89,192 shares; and 2019 - 262,074 shares.
Half of the performance shares granted during the year ended September 30, 2016 must meet a performance goal related to relative return on capital over the performance cycle of October 1, 2015 to September 30, 2018. In addition, half of the performance shares granted during the year ended September 30, 2015 must meet a performance goal related to relative return on capital over the performance cycle of October 1, 2014 to September 30, 2017, and half of the performance shares granted during the year ended September 30, 2014 must meet a performance goal related to relative return on capital over the performance cycle of October 1, 2013 to September 30, 2016.  The performance goals over their respective performance cycles for these performance shares granted during 2016, 2015 and 2014 is the Company’s total return on capital relative to the total return on capital of other companies in a group selected by the Compensation Committee (“Report Group”).  Total return on capital for a given company means the average of the Report Group companies’ returns on capital for each twelve month period corresponding to each of the Company’s fiscal years during the performance cycle, based on data reported for the Report Group companies in the Bloomberg database.  The number of these performance shares that will vest and be paid will depend upon the Company’s performance relative to the Report Group and not upon the absolute level of return achieved by the Company.  The fair value of these performance shares is calculated by multiplying the expected number of shares that will be issued by the average market price of Company common stock on the date of grant reduced by the present value of forgone dividends over the vesting term of the award.  The fair value is recorded as compensation expense over the vesting term of the award.  
The other half of the performance shares granted during the year ended September 30, 2016 must meet a performance goal related to relative total shareholder return over the performance cycle of October 1, 2015 to September 30, 2018. In addition, the other half of the performance shares granted during the year ended September 30, 2015 must meet a performance goal related to relative total shareholder return over the performance cycle of October 1, 2014 to September 30, 2017, and the other half of the performance shares granted during the year ended September 30, 2014 must meet a performance goal related to relative total shareholder return over the performance cycle of October 1, 2013 to September 30, 2016.  The performance goals over their respective performance cycles for these total shareholder return performance shares ("TSR performance shares") granted during 2016, 2015 and 2014 is the Company’s three-year total shareholder return relative to the three-year total shareholder return of the other companies in the Report Group.  Three-year shareholder return for a given company will be based on the data reported for that company (with the starting and ending stock prices over the performance cycle calculated as the average closing stock price for the prior calendar month and with dividends reinvested in that company’s securities at each ex-dividend date) in the Bloomberg database.  The number of these TSR performance shares that will vest and be paid will depend upon the Company’s performance relative to the Report Group and not upon the absolute level of return achieved by the Company.  The fair value price at the date of grant for the TSR performance shares is determined using a Monte Carlo simulation technique, which includes a reduction in value for the present value of forgone dividends over the vesting term of the award.  This price is multiplied by the number of TSR performance shares awarded, the result of which is recorded as compensation expense over the vesting term of the award. In calculating fair value of the award, the risk-free interest rate is based on the yield of a Treasury Note with a term commensurate with the remaining term of the TSR performance shares. The remaining term is based on the remainder of the performance cycle as of the date of grant. The expected volatility is based on historical daily stock price returns. For the TSR performance shares, it was assumed that there would be no forfeitures, based on the vesting term and the number of grantees. The following assumptions were used in estimating the fair value of the TSR performance shares at the date of grant:
 
Year Ended September 30
 
2016
 
2015
 
2014
Risk-Free Interest Rate
1.26
%
 
1.01
%
 
0.62
%
Remaining Term at Date of Grant (Years)
2.79

 
2.78

 
2.78

Expected Volatility
20.5
%
 
20.1
%
 
28.3
%
Expected Dividend Yield (Quarterly)
N/A

 
N/A

 
N/A


Redeemable Preferred Stock
As of September 30, 2016, there were 10,000,000 shares of $1 par value Preferred Stock authorized but unissued.
Long-Term Debt
The outstanding long-term debt is as follows:
 
At September 30
 
2016
 
2015
 
(Thousands)
Medium-Term Notes(1):
 
 
 
7.4% due March 2023 to June 2025
$
99,000

 
$
99,000

Notes(1)(3):
 
 
 
3.75% to 8.75% due April 2018 to July 2025
2,000,000

 
2,000,000

Total Long-Term Debt
2,099,000

 
2,099,000

Less Unamortized Discount and Debt Issuance Costs
12,748

 
14,991

Less Current Portion(2)

 

 
$
2,086,252

 
$
2,084,009

 
(1)
The Medium-Term Notes and Notes are unsecured.
(2)
None of the Company’s long-term debt at September 30, 2016 and 2015 will mature within the following twelve-month period.
(3)
The holders of these notes may require the Company to repurchase their notes at a price equal to 101% of the principal amount in the event of both a change in control and a ratings downgrade to a rating below investment grade.
On June 25, 2015, the Company issued $450.0 million of 5.20% notes due July 15, 2025. After deducting underwriting discounts, commissions and other debt issuance costs, the net proceeds to the Company amounted to $444.6 million. The proceeds of this debt issuance were used for general corporate purposes, including the reduction of short-term debt.
As of September 30, 2016, the aggregate principal amounts of long-term debt maturing during the next five years and thereafter are as follows: zero in 2017, $300.0 million in 2018, $250.0 million in 2019, zero in 2020 and 2021 and $1,549.0 million thereafter.
Short-Term Borrowings
The Company historically has obtained short-term funds either through bank loans or the issuance of commercial paper. On September 9, 2016, the Company entered into a Third Amended and Restated Credit Agreement (Credit Agreement) with a syndicate of 14 banks. This Credit Agreement provides a $750.0 million multi-year unsecured committed revolving credit facility through December 5, 2019. The Credit Agreement also provides a $500.0 million 364-day unsecured committed revolving credit facility with 11 of the 14 banks through September 8, 2017. The Company also has a number of individual uncommitted or discretionary lines of credit with certain financial institutions for general corporate purposes. Borrowings under the uncommitted lines of credit are made at competitive market rates. The uncommitted credit lines are revocable at the option of the financial institutions and are reviewed on an annual basis. The Company anticipates that its uncommitted lines of credit generally will be renewed or substantially replaced by similar lines. The total amount available to be issued under the Company’s commercial paper program is $500.0 million. At September 30, 2016, the commercial paper program was backed by the Credit Agreement.
The Company did not have any outstanding commercial paper or short term notes payable to banks at September 30, 2016 and 2015.
Debt Restrictions
The Credit Agreement provides that the Company's debt to capitalization ratio will not exceed .675 at the last day of any fiscal quarter through September 30, 2017, or .65 at the last day of any fiscal quarter from October 1, 2017 through December 5, 2019. At September 30, 2016, the Company’s debt to capitalization ratio (as calculated under the facility) was .58. The constraints specified in the Credit Agreement would have permitted an additional $1.08 billion in short-term and/or long-term debt to be outstanding (further limited by the indenture covenants discussed below) before the Company’s debt to capitalization ratio exceeded .675.
A downgrade in the Company’s credit ratings could increase borrowing costs, negatively impact the availability of capital from banks, commercial paper purchasers and other sources, and require the Company's subsidiaries to post letters of credit, cash or other assets as collateral with certain counterparties. If the Company is not able to maintain investment-grade credit ratings, it may not be able to access commercial paper markets. However, the Company expects that it could borrow under its credit facilities or rely upon other liquidity sources, including cash provided by operations.
The Credit Agreement contains a cross-default provision whereby the failure by the Company or its significant subsidiaries to make payments under other borrowing arrangements, or the occurrence of certain events affecting those other borrowing arrangements, could trigger an obligation to repay any amounts outstanding under the Credit Agreement. In particular, a repayment obligation could be triggered if (i) the Company or any of its significant subsidiaries fails to make a payment when due of any principal or interest on any other indebtedness aggregating $40.0 million or more, or (ii) an event occurs that causes, or would permit the holders of any other indebtedness aggregating $40.0 million or more to cause, such indebtedness to become due prior to its stated maturity. As of September 30, 2016, the Company had no debt outstanding under the Credit Agreement.
Under the Company’s existing indenture covenants, at September 30, 2016, the Company expects to be precluded from issuing additional long-term unsecured indebtedness until the second half of fiscal 2017 as a result of impairments of its oil and gas properties recognized during the years ended September 30, 2016 and 2015. The 1974 indenture would not preclude the Company from issuing new indebtedness to replace maturing debt, and the Company expects that it could borrow under its credit facilities. The Company's present liquidity position is believed to be adequate to satisfy known demands.
The Company’s 1974 indenture pursuant to which $98.7 million (or 4.7%) of the Company’s long-term debt (as of September 30, 2016) was issued, contains a cross-default provision whereby the failure by the Company to perform certain obligations under other borrowing arrangements could trigger an obligation to repay the debt outstanding under the indenture. In particular, a repayment obligation could be triggered if the Company fails (i) to pay any scheduled principal or interest on any debt under any other indenture or agreement, or (ii) to perform any other term in any other such indenture or agreement, and the effect of the failure causes, or would permit the holders of the debt to cause, the debt under such indenture or agreement to become due prior to its stated maturity, unless cured or waived.