Exhibit 99.1

PRESS RELEASE

CONTACT:

Brian L. Cantrell

Alliance Holdings GP, L.P.

1717 South Boulder Avenue, Suite 400

Tulsa, Oklahoma 74119

(918) 295-7673

FOR IMMEDIATE RELEASE

ALLIANCE HOLDINGS GP, L.P.

Reports Quarterly Financial Results; Increases Quarterly Distribution by 1.0% to $0.7425 Per Unit; and Announces Intent to Simplify Structure

TULSA, OKLAHOMA, January 29, 2018 — Alliance Holdings GP, L.P. (NASDAQ: AHGP) today reported financial results for the quarter and year ended December 31, 2017 (the "2017 Quarter" and the "2017 Year", respectively). As previously announced, the Board of Directors of its general partner (the "Board") approved a distribution to unitholders of $0.7425 per unit (an annualized rate of $2.97 per unit) for the 2017 Quarter, payable on February 20, 2018 to AHGP unitholders of record as of the close of trading on February 13, 2018. The announced distribution represents a 35.0% increase over the cash distribution of $0.55 for the quarter ended December 31, 2016 and a 1.0% increase over the cash distribution of $0.735 for the quarter ended September 30, 2017 (the “Sequential Quarter”).

AHGP's principal sources of cash flow are its ownership interests in Alliance Resource Partners, L.P. (NASDAQ: ARLP). The declared distribution is based on the distribution AHGP will receive from its ownership interests in ARLP, which previously announced a quarterly distribution for the 2017 Quarter of $0.51 per unit, or $2.04 per unit on an annualized basis, payable on February 14, 2018 to all unitholders of record as of the close of trading on February 7, 2018. (See ARLP Press Release dated January 26, 2018.)

AHGP also reported net income attributable to AHGP for the 2017 Quarter of $49.3 million, or $0.82 per basic and diluted limited partner interest, a decrease of 19.4% compared to net income attributable to AHGP for the 2016 Quarter of $61.2 million, or $1.02 per basic and diluted limited partner unit. Net income attributable to AHGP for the 2017 Quarter increased approximately 26.1% compared to net income attributable to AHGP for the Sequential Quarter of $39.1 million, or $0.65 per basic and diluted limited partner unit. For the year ended December 31, 2017, AHGP reported net income of $186.0 million, or $3.11 per basic and diluted limited partner unit, which is consistent with the year ended December 31, 2016.

Operating results for AHGP reflect those of the operating subsidiaries of ARLP and, as a result, AHGP reports its financial results on a consolidated basis with the financial results of ARLP. The consolidated net income of AHGP includes earnings and losses attributable to both AHGP and noncontrolling interests.

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AHGP also announced it intends to move forward with a structural simplification of the Alliance Partnerships, as initially discussed last July when AHGP exchanged its incentive distribution rights in ARLP for common units in ARLP. (Please see Press Release dated July 28, 2017.) At that time, we indicated further evaluation of our structural alternatives and the potential outcome of tax reform proposals then under consideration was appropriate before determining whether further simplification of the Alliance Partnerships should proceed. Now that our structural evaluations are complete and tax reform has been clarified, management has recommended to the Board that further streamlining the Alliance Partnerships’ structure into a single reporting and trading entity should be pursued. We currently anticipate simplification would be principally accomplished through a distribution of ARLP common units held by AHGP to the AHGP unitholders. While the final form of this simplification is being refined, AHGP expects to complete this process in 2018 and will provide additional information once a final structure is approved.

A joint conference call regarding AHGP and ARLP’s 2017 Quarter and 2017 Year financial results is scheduled for today at 10:00 a.m. Eastern. To participate in the conference call, dial (877) 317-6016 and request to be connected to the Alliance Resource Partners, L.P. and Alliance Holdings GP, L.P earnings conference call. Canadian callers should dial (855) 669-9657 and all other International callers should dial (412) 317-6016 and request to be connected to the same call. Investors may also listen to the call via the "investor information" section of ARLP's website at http://www.arlp.com or AHGP's website at http://www.ahgp.com.

An audio replay of the conference call will be available for approximately one week. To access the audio replay, dial US Toll Free (877) 344-7529; International Toll (412) 317-0088; Canada Toll Free (855) 669-9658 and request to be connected to replay access code 10115818.

About Alliance Holdings GP, L.P.

AHGP is a limited partnership formed to own and control ARLP's general partner through which it holds a non-economic general partner interest in ARLP and an approximate one percent general partner interest in ARLP's operating subsidiary, Alliance Resource Operating Partners, L.P. In addition, AHGP owns 87,188,338 common units of ARLP.

News, unit prices and additional information about AHGP including filings with the Securities and Exchange Commission, are available at http://www.ahgp.com. For more information, contact the investor relations department of AHGP at (918) 295-1415 or via e-mail at investorrelations@ahgp.com.

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The statements and projections used throughout this release are based on current expectations. These statements and projections are forward-looking, and actual results may differ materially. These statements do not include the potential impact of any mergers, acquisitions or other business combinations that may occur after the date of this release. At the end of this release, we have included more information regarding business risks that could affect our results.

FORWARD-LOOKING STATEMENTS: With the exception of historical matters, any matters discussed in this press release are forward-looking statements that involve risks and uncertainties that could cause actual results to differ materially from projected results. These risks, uncertainties and contingencies include, but are not limited to, the following: changes in competition in coal markets and the ability of ARLP and its consolidated subsidiaries

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(the "ARLP Partnership") to respond to such changes; changes in coal prices, which could affect the ARLP Partnership's operating results and cash flows; risks associated with the expansion of the ARLP Partnership's operations and properties; legislation, regulations, and court decisions and interpretations thereof, including those relating to the environment and the release of greenhouse gases, mining, miner health and safety and health care; deregulation of the electric utility industry or the effects of any adverse change in the coal industry, electric utility industry, or general economic conditions; dependence on significant customer contracts, including renewing existing contracts upon expiration; changing global economic conditions or in industries in which the ARLP Partnership's customers operate; liquidity constraints, including those resulting from any future unavailability of financing; customer bankruptcies, cancellations or breaches to existing contracts, or other failures to perform; customer delays, failure to take coal under contracts or defaults in making payments; adjustments made in price, volume or terms to existing coal supply agreements; fluctuations in coal demand, prices and availability; continuation or worsening of depressed oil and gas prices adversely affecting the ARLP Partnership’s investments in oil and gas mineral interests and midstream services; the ARLP Partnership's productivity levels and margins earned on its coal sales; changes in raw material costs; changes in the availability of skilled labor; the ARLP Partnership's ability to maintain satisfactory relations with its employees; increases in labor costs, including costs of health insurance and taxes resulting from the Affordable Care Act, adverse changes in work rules, or cash payments or projections associated with post-mine reclamation and workers' compensation claims; increases in transportation costs and risk of transportation delays or interruptions; operational interruptions due to geologic, permitting, labor, weather-related or other factors; risks associated with major mine-related accidents, such as mine fires, or interruptions; results of litigation, including claims not yet asserted; difficulty maintaining the ARLP Partnership's surety bonds for mine reclamation as well as workers' compensation and black lung benefits; difficulty in making accurate assumptions and projections regarding post-mine reclamation as well as pension, black lung benefits and other post-retirement benefit liabilities; the coal industry's share of electricity generation, including as a result of environmental concerns related to coal mining and combustion and the cost and perceived benefits of other sources of electricity, such as natural gas, nuclear energy and renewable fuels; uncertainties in estimating and replacing the ARLP Partnership's coal reserves; a loss or reduction of benefits from certain tax deductions and credits; difficulty obtaining commercial property insurance, and risks associated with the ARLP Partnership's participation (excluding any applicable deductible) in the commercial insurance property program; and difficulty in making accurate assumptions and projections regarding future revenues and costs associated with investments in companies the ARLP Partnership does not control.

Additional information concerning these and other factors can be found in AHGP's public periodic filings with the Securities and Exchange Commission ("SEC"), including AHGP's Annual Report on Form 10-K for the year ended December 31, 2016, filed on February 24, 2017 and AHGP's Quarterly Reports on Form 10-Q for the quarters ended March 31, 2017, June 30, 2017, and September 30, 2017 filed on May 8, 2017, August 4, 2017, and November 6, 2017, respectively, with the SEC. Except as required by applicable securities laws, AHGP does not intend to update its forward-looking statements.

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ALLIANCE HOLDINGS GP, L.P. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND OPERATING DATA

(In thousands, except unit and per unit data)

(Unaudited)


	Three Months Ended				Year Ended
	December 31,				December 31,
	2017		2016		2017		2016
SALES AND OPERATING REVENUES:
Coal sales	$	454,946	$	504,210	$	1,711,114	$	1,861,788
Transportation revenues		16,767		10,379		41,700		30,111
Other sales and operating revenues		11,417		12,702		43,027		39,124
Total revenues		483,130		527,291		1,795,841		1,931,023

EXPENSES:
Operating expenses (excluding depreciation, depletion and amortization)		298,322		282,431		1,095,167		1,124,848
Transportation expenses		16,767		10,379		41,700		30,111
Outside coal purchases		—		—		—		1,514
General and administrative		16,171		19,912		63,331		75,087
Depreciation, depletion and amortization		74,872		90,773		268,981		336,509
Total operating expenses		406,132		403,495		1,469,179		1,568,069

INCOME FROM OPERATIONS		76,998		123,796		326,662		362,954
Interest expense, net		(10,481)		(7,283)		(39,385)		(30,669)
Interest income		15		3		102		14
Equity investment income		3,446		2,502		13,860		3,543
Cost investment income		3,598		—		6,398		—
Debt extinguishment loss		—		—		(8,148)		—
Other income		519		180		2,980		725

INCOME BEFORE INCOME TAXES		74,095		119,198		302,469		336,567

INCOME TAX EXPENSE		214		10		211		14

NET INCOME		73,881		119,188		302,258		336,553

LESS: NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS		(24,609)		(57,976)		(116,270)		(150,619)

NET INCOME ATTRIBUTABLE TO ALLIANCE HOLDINGS GP, L.P. ("NET INCOME OF AHGP")	$	49,272	$	61,212	$	185,988	$	185,934

BASIC AND DILUTED NET INCOME OF AHGP PER LIMITED PARTNER UNIT	$	0.82	$	1.02	$	3.11	$	3.11

DISTRIBUTIONS PAID PER LIMITED PARTNER UNIT	$	0.7350	$	0.5500	$	2.5650	$	2.6100

WEIGHTED AVERAGE NUMBER OF UNITS OUTSTANDING – BASIC AND DILUTED		59,863,000		59,863,000		59,863,000		59,863,000

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ALLIANCE HOLDINGS GP, L.P. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands, except unit data)

(Unaudited)


	December 31,
	2017		2016
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	8,643	$	44,525
Trade receivables		181,671		152,032
Other receivables		146		279
Due from affiliates		25		37
Inventories, net		60,275		61,051
Advance royalties, net		4,510		1,207
Prepaid expenses and other assets		28,192		22,128
Total current assets		283,462		281,259
PROPERTY, PLANT AND EQUIPMENT:
Property, plant and equipment, at cost		2,934,188		2,920,988
Less accumulated depreciation, depletion and amortization		(1,457,532)		(1,335,145)
Total property, plant and equipment, net		1,476,656		1,585,843
OTHER ASSETS:
Advance royalties, net		39,660		29,372
Equity investments		147,964		138,817
Cost investments		106,398		—
Goodwill		136,399		136,399
Other long-term assets		30,712		25,997
Total other assets		461,133		330,585
TOTAL ASSETS	$	2,221,251	$	2,197,687

LIABILITIES AND PARTNERS' CAPITAL
CURRENT LIABILITIES:
Accounts payable	$	97,371	$	64,460
Due to affiliates		771		906
Accrued taxes other than income taxes		20,366		18,288
Accrued payroll and related expenses		35,801		41,576
Accrued interest		5,005		316
Workers' compensation and pneumoconiosis benefits		10,729		9,897
Current capital lease obligations		28,613		27,196
Other current liabilities		19,071		14,778
Current maturities, long-term debt, net		72,400		149,874
Total current liabilities		290,127		327,291
LONG-TERM LIABILITIES:
Long-term debt, excluding current maturities, net		415,937		399,446
Pneumoconiosis benefits		71,875		62,822
Accrued pension benefit		45,317		42,070
Workers' compensation		46,694		40,400
Asset retirement obligations		126,750		125,266
Long-term capital lease obligations		57,091		85,540
Other liabilities		14,587		17,203
Total long-term liabilities		778,251		772,747
Total liabilities		1,068,378		1,100,038

PARTNERS’ CAPITAL:
Alliance Holdings GP, L.P. ("AHGP") Partners' Capital:
Limited Partners – Common Unitholders 59,863,000 units outstanding		626,831		598,077
Accumulated other comprehensive loss		(34,820)		(16,550)
Total AHGP Partners' Capital		592,011		581,527
Noncontrolling interests		560,862		516,122
Total Partners’ Capital		1,152,873		1,097,649
TOTAL LIABILITIES AND PARTNERS’ CAPITAL	$	2,221,251	$	2,197,687

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ALLIANCE HOLDINGS GP, L.P. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

(Unaudited)


	Year Ended December 31,
	2017		2016

CASH FLOWS FROM OPERATING ACTIVITIES:	$	554,082	$	700,725

CASH FLOWS FROM INVESTING ACTIVITIES:
Property, plant and equipment:
Capital expenditures		(145,088)		(91,056)
Increase (decrease) in accounts payable and accrued liabilities		7,404		(4,402)
Proceeds from sale of property, plant and equipment		2,139		1,165
Contributions to equity investments		(20,688)		(76,797)
Purchase of cost investment		(100,000)		—
Distributions received from investments in excess of cumulative earnings		11,462		3,313
Payment for acquisition of business		—		(1,011)
Payment for acquisition of customer contracts		—		(23,000)
Net cash used in investing activities		(244,771)		(191,788)

CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings under securitization facility		100,000		44,600
Payments under securitization facility		(127,600)		(27,700)
Payments on term loan		(50,000)		(156,250)
Borrowings under revolving credit facilities		215,486		140,000
Payments under revolving credit facilities		(440,486)		(270,000)
Borrowings under long-term debt		400,000		—
Payment on long-term debt		(145,000)		—
Proceeds on capital lease transactions		—		33,881
Payments on capital lease obligations		(27,071)		(24,456)
Payment of debt issuance costs		(16,487)		(101)
Payment for debt extinguishment		(8,148)		—
Contributions to consolidated company from affiliate noncontrolling interest		251		3,014
Net settlement of employee withholding taxes on vesting of ARLP Long-Term Incentive Plan		(2,988)		(1,336)
Contribution by limited partner - affiliate		1,000		1,000
Distributions paid by consolidated partnership to non-affiliate non-controlling interest and unissued LTIP participants		(84,973)		(89,311)
Distributions paid to Partners		(153,549)		(156,242)
Other		(5,628)		(189)
Net cash used in financing activities		(345,193)		(503,090)

NET CHANGE IN CASH AND CASH EQUIVALENTS		(35,882)		5,847

CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD		44,525		38,678

CASH AND CASH EQUIVALENTS AT END OF PERIOD	$	8,643	$	44,525

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Alliance Holdings GP, L.P. 8-K