Note 9—Credit Arrangements

Long-term debt and credit facilities consist of the following (in thousands):


	September 30,		December 31,
	2018		2017
Term loan	$	217,250	$	—
Revolving credit facility		—		—
Commercial equipment notes		142,964		165,532
Mortgage notes		10,879		11,242
Senior secured notes		—		82,143
Total debt		371,093		258,917
Unamortized debt issuance costs		(1,053)		(102)
Total debt, net	$	370,040	$	258,815
Less: current portion		(63,947)		(65,464)
Long-term debt, net of current portion	$	306,093	$	193,351

The weighted average interest rate on total debt outstanding at September 30, 2018 and December 31, 2017 was 4.1% and 3.0%, respectively.

Commercial Notes Payable and Mortgage Notes Payable

From time to time, we enter into commercial equipment notes payable with various equipment finance companies and banks. At September 30, 2018, interest rates ranged from 1.83% to 4.40% per annum and maturity dates ranged from April 28, 2019 to April 30, 2023. The notes are secured by certain construction equipment.

We also entered into two secured mortgage notes payable to a bank in December 2015 totaling $8.0 million, with interest rates of 4.3% per annum and maturity dates of January 1, 2031. The mortgage notes are secured by two buildings.

During 2017, we acquired three properties from a related party and assumed three mortgage notes secured by the properties totaling $4.2 million, with interest rates of 5.0% per annum and maturity dates of October 1, 2038.

Credit Agreement

On September 29, 2017, we entered into an amended and restated credit agreement (the “Credit Agreement”) with CIBC Bank USA, as administrative agent (the “Administrative Agent”) and co-lead arranger, The Bank of the West, as co-lead arranger, and Branch Banking and Trust Company, IBERIABANK, Bank of America, and Simmons Bank (collectively, the “Lenders”), which increased our borrowing capacity from $125.0 million to $200.0 million. The Credit Agreement consists of a $200.0 million revolving credit facility (“Revolving Credit Facility”), whereby the Lenders agreed to make loans on a revolving basis from time to time and to issue letters of credit for up to the $200.0 million committed amount, and contains an accordion feature that will allow us to increase the borrowing capacity thereunder from $200.0 million up to $250.0 million, subject to obtaining additional or increased lender commitments.

On July 9, 2018, we entered into the First Amendment and Joinder to the Amended and Restated Credit Agreement (the “July Amendment”) with the Administrative Agent and the Lenders. On August 3, 2018, we entered into the Second Amendment to the Amended and Restated Credit Agreement (the “August Amendment”, and together with the July Amendment, the “Amendments”) with the Administrative Agent and the Lenders. The Amendments amend the Credit Agreement, dated as of September 29, 2017, among such parties.

The Amendments, among other things, modify the Credit Agreement to add Capital One, N.A. and Regions Bank as Lenders, include a $220.0 million term loan (the “Term Loan”), increase the accordion feature that will allow us to increase the Term Loan or borrowing capacity under the Revolving Credit Facility by $75.0 million, and extend the maturity date of the Credit Agreement from September 29, 2022 to July 9, 2023.

The Term Loan requires quarterly principal payments equal to $2.75 million, or $11.0 million per annum, for the first three years and $4.125 million, or $16.5 million per annum, for years four and five, with the balance due on July 9, 2023. The first principal payment was paid on September 28, 2018.

The proceeds from the Term Loan were used to refinance and extinguish all of the Senior Notes (as discussed below), to pay down a significant portion of the borrowings under our Revolving Credit Facility that was used to finance the acquisition of Willbros, and for general corporate purposes.

We capitalized $0.6 million of debt issuance costs during the third quarter of 2017 and $1.0 million during the third quarter of 2018 that is being amortized as interest expense over the life of the Credit Agreement.

The principal amount of any loans under the Credit Agreement will bear variable interest at either: (i) LIBOR plus an applicable margin as specified in the Credit Agreement (based on our senior debt to EBITDA ratio as defined in the Credit Agreement), or (ii) the Base Rate (which is the greater of (a) the Federal Funds Rate plus 0.50% or (b) the prime rate as announced by the Administrative Agent). Non-use fees, letter of credit fees and administrative agent fees are payable at rates specified in the Credit Agreement.

The principal amount of any loan drawn under the Credit Agreement may be prepaid in whole or in part at any time, with a minimum prepayment of $5.0 million.

At September 30, 2018, commercial letters of credit outstanding were $50.7 million. Other than commercial letters of credit, there were no outstanding borrowings under the Revolving Credit Facility, and available borrowing capacity was $149.3 million at September 30, 2018.

Loans made under the Credit Agreement are secured by our assets, including, among others, our cash, inventory, equipment (excluding equipment subject to permitted liens), and accounts receivable. All of our domestic subsidiaries have issued joint and several guaranties in favor of the Lenders for all amounts under the Credit Agreement.

The Credit Agreement contains various restrictive and financial covenants including, among others, senior debt/EBITDA ratio and debt service coverage requirements. In addition, the Credit Agreement includes restrictions on investments, change of control provisions and provisions in the event we dispose of more than 20% of our total assets.

We were in compliance with the covenants for the Credit Agreement at September 30, 2018.

On September 13, 2018, we entered into an interest rate swap agreement to manage our exposure to the fluctuations in variable interest rates. The swap effectively exchanged the interest rate on 75% of the debt outstanding under our Term Loan from variable LIBOR to a fixed rate of 2.886% per annum, in each case plus an applicable margin, which was 2.25% at September 30, 2018. See Note 10 – “Derivative Instruments”.

Senior Secured Notes and Shelf Agreement

On December 28, 2012, we entered into a $50.0 million Senior Secured Notes purchase agreement (“Senior Secured Notes”) and a $25.0 million private shelf agreement (the “Notes Agreement”) by and among us, The Prudential Investment Management, Inc. and certain Prudential affiliates (the “Noteholders”). On June 3, 2015, the Notes Agreement was amended to provide for the issuance of additional notes of up to $75.0 million over the three year period ending June 3, 2018 ("Additional Senior Notes" and together with the Senior Secured Notes, the “Senior Notes”).

The Senior Notes were funded in three tranches of $50.0 million on December 28, 2012, $25.0 million on July 25, 2013, and $25.0 million on November 9, 2015, and bore interest at annual rates of 3.65%, 3.85%, and 4.60%, respectively, paid quarterly in arrears.

On July 9, 2018, we used a portion of the proceeds from the Term Loan to pay off and extinguish all of the Senior Notes, which resulted in a prepayment penalty recognized in the third quarter of 2018 of $2.3 million.

Canadian Credit Facility

We have a demand credit facility for $8.0 million in Canadian dollars with a Canadian bank for purposes of issuing commercial letters of credit in Canada. The credit facility has an annual renewal and provides for the issuance of commercial letters of credit for a term of up to five years. The facility provides for an annual fee of 1.0% for any issued and outstanding commercial letters of credit. Letters of credit can be denominated in either Canadian or U.S. dollars. At September 30, 2018, there were no letters of credit outstanding, and the available borrowing capacity was $8.0 million in Canadian dollars. The credit facility contains a working capital restrictive covenant for OnQuest Canada, ULC. At September 30, 2018, OnQuest Canada, ULC was in compliance with the covenant.