Arch Coal, Inc. Reports Second Quarter 2008 Results
Earnings per share increase 200% from prior-year quarter;
Company earns record EBITDA of $240.9 million;
Raises full year 2008 guidance range

ST. LOUIS (July 25, 2008) — Arch Coal, Inc. (NYSE:ACI) today reported net
income of $113.0 million, or $0.78 per fully diluted share, in the second
quarter of 2008 compared with net income of $37.6 million, or $0.26 per fully
diluted share, in the second quarter of 2007. Income from operations more than
tripled to $169.0 million in the quarter just ended, and adjusted earnings
before interest, taxes, depreciation and amortization ("EBITDA") more
than doubled to a record $240.9 million. The company also recorded $785.1
million in consolidated revenues during the second quarter of 2008, an increase
of more than 30 percent from the year-ago quarter.
"Arch delivered another strong earnings performance in the second
quarter, achieving a three-fold increase in net income and earnings per
share," said Steven F. Leer, Arch's chairman and chief executive officer.
"We also beat the company's previously established EBITDA record that was
set in the first quarter of 2008. Our solid financial results were driven by
expanded operating margins in our Central Appalachian and Western Bituminous
regions, coupled with a significant contribution from our trading and asset
optimization function. Our diverse asset base helped the company overcome the
impact of weather-related challenges at our Powder River Basin operations during
the quarter just ended."
In the first half of 2008, Arch's net income nearly tripled to $194.1 million
compared with the first half of 2007. Over the same time period, the company
earned a record $430.4 million in EBITDA, representing a 95 percent increase
compared with the prior-year period.
"We are pleased with our performance so far in 2008," continued
Leer. "Looking ahead, we expect continued solid execution from our Central
Appalachian and Western Bituminous segments coupled with improving fundamentals
in our Powder River Basin operations."
Arch Delivers a Strong Operational Performance Despite Challenges
"Arch's second quarter 2008 operating results underscore the value of
diversity in the company's asset base," said John W. Eaves, Arch's
president and chief operating officer. "Our mining complexes delivered
strong performances in the quarter, driven by our operations in Central
Appalachia - particularly Mountain Laurel - as well as an expanded contribution
from our operations in the Western Bituminous region. Additionally, our Powder
River Basin operations achieved a solid performance in the second quarter while
persevering through adverse weather conditions and rail challenges."
"We were successful in achieving higher price realizations across all of
our operating regions in the second quarter, particularly in our Central
Appalachian and Western Bituminous regions, where pricing reached record
levels," added Eaves. "At the same time, we remain diligently focused
on cost control across the organization in an effort to enhance margins.
Managing controllable costs remains a key priority for Arch, and we expect to
build upon these efforts during the year's second half."

Consolidated average sales price per ton increased nearly 14 percent in the
second quarter of 2008 when compared with the first quarter, driven by higher
average price realizations across all operating regions and a favorable regional
sales mix. Consolidated per-ton operating costs increased 11 percent over the
same time period, reflecting increased volumes from higher-cost regions as well
as higher sales-sensitive and commodity-related costs. Arch's second quarter
2008 consolidated per-ton operating margin expanded by nearly 27 percent
compared with the prior-quarter period.

In the Powder River Basin, second quarter 2008 sales volume declined 1.0
million tons when compared with the first quarter, due to heavy rainfall in
Wyoming in May which affected production and Midwest flooding in June which
affected rail service. Average sales price per ton increased $0.23 when compared
with the first quarter of 2008, reflecting higher pricing on market index-priced
tons, while per-ton operating costs increased $0.51 over the same time period.
Higher per-ton operating costs were driven by reduced volumes as well as higher
commodity-related and sales-sensitive costs. Arch's Powder River Basin
operations contributed $0.94 per ton in operating margin during the second
quarter of 2008 compared with $1.22 per ton in the prior-quarter period.

In the Western Bituminous region, second quarter 2008 sales volume rose by
0.6 million tons compared with the first quarter, driven by increased shipments
from Arch's West Elk mine in Colorado. Average sales price per ton increased
$3.15 when compared with the first quarter of 2008, benefiting from a favorable
mix of customer shipments and additional open market sales in the quarter just
ended. Per-ton operating costs increased $2.20 over the same time period,
reflecting higher sales-sensitive costs, increased volumes from higher-cost
mines as well as the impact of an additional longwall move in the region. Arch's
Western Bituminous operations earned $7.54 per ton in operating margin during
the second quarter of 2008, representing more than a 14 percent increase from
the prior-quarter period.

In Central Appalachia, second quarter 2008 sales volume increased more than
11 percent compared with the first quarter, primarily driven by higher
production rates at several of Arch's operations in the region. Average sales
price per ton increased $8.81 in the second quarter of 2008 when compared with
the first quarter, benefiting from higher pricing on metallurgical and steam
coal sales as well as increased metallurgical coal shipments. Per-ton operating
costs increased $2.67 over the same time period, half of which is attributable
to higher sales-sensitive costs. Arch's Central Appalachian operations earned
$20.16 per ton in operating margin in the second quarter of 2008, representing a
nearly 44 percent increase from the prior-quarter period.
Continuously Improving Safety and Environmental Performance
For the first half of 2008, Arch's operations made significant advancements
in the pursuit of safety and environmental excellence, including achieving more
than a 20 percent improvement in the company's lost-time safety incident rate
compared with Arch's five-year average, and setting a new company record for
environmental performance. In fact, the company's year-to-date 2008 safety and
environmental performances are again outpacing coal industry peers.
During the second quarter of 2008, Arch's mining operations also were
recognized with seven state awards for outstanding safety practices and
commitment to environmental stewardship. In particular, the Rocky Mountain Coal
Mining Institute again named Skyline as the safest underground coal mine in the
western United States based on its three-year incident rate. Furthermore, the
Utah Division of Oil, Gas and Mining recognized the Skyline and Sufco mines with
2008 Earth Day Awards for environmental stewardship efforts.
"Each year, mine employees set the bar higher, implementing new local
safety initiatives and good neighbor practices," said Leer. "We remain
sharply focused in our efforts not only to lead the coal mining industry, but
also to make continuous improvements in the three core values of our success -
safety, environmental and financial performance."
Arch Signs Selective Sales Agreements in Attractive Coal Markets
Global and domestic coal price trends accelerated during the second quarter
of 2008, as price appreciation in coal indices outpaced the large gains achieved
in the first quarter. New records were set in June as seaborne steam coal for
delivery into northern Europe crossed the $200-per-metric-tonne mark and Central
Appalachian steam coal prices surpassed the $100-per-short-ton mark. More
recently, benchmark coal index price levels have retreated from record highs,
but still remain at elevated levels.
"Despite near-term volatility in financial coal markets, physical coal
markets remain strong, underpinned by favorable supply and demand
fundamentals," said Leer.
Coal index pricing levels have risen meaningfully across all of Arch's key
operating basins in 2008. Since the beginning of the year, steam coal prices for
2009 delivery have more than doubled in Central Appalachia and the Western
Bituminous region, while increasing nearly 50 percent in the Powder River Basin.
"Given tight supply conditions and strong demand for coal globally, we
have reached price levels that are unprecedented," said Eaves. "At the
same time, we continue to believe these strong pricing levels are sustainable
over the next several years. Against this backdrop, we have chosen to
selectively sign sales commitments that will provide a solid foundation for
delivering superior returns on our asset portfolio in future years, while
continuing to maintain significant exposure to coal markets."
In Central Appalachia, Arch committed volumes to international and domestic
metallurgical coal customers for 2008 and 2009 delivery, at average netback mine
prices approaching $200 per short ton. A substantial portion of the company's
2009 metallurgical coal volume - and virtually all of its metallurgical coal
volume in 2010 - remains unpriced. Arch also signed selective steam coal sales
agreements for 2009 and 2010 delivery, at average pricing in the triple digits.
In the Western Bituminous region, Arch layered in sales commitments during
the second quarter of 2008 that in aggregate achieved more than a 60 percent
premium to the company's average realized price in the region for the quarter
just ended. These commitments are scheduled for delivery over the next three
years. Forward pricing in the region has continued to strengthen as the year has
progressed, which suggests that Western Bituminous supply is not keeping pace
with current demand. Consequently, Arch believes its remaining unpriced sales
position in the region is even more valuable in the marketplace.
In the Powder River Basin, Arch selectively committed and priced volumes for
2009 and 2010 delivery, at average prices that are approximately 55 percent
above the company's average realized price in the region for the second quarter
of 2008. More recently, Arch has committed additional volume under multi-year
commitments, at a 100 percent premium to the company's second quarter 2008
average realized price in the region. Looking ahead, Arch has strategically
chosen to maintain significant leverage to the Powder River Basin market, as the
company expects global and domestic supply and demand pressures to further
improve pricing in the region.
Given recently signed sales commitments as well as reduced volume
expectations for the full year, Arch now has unpriced coal volumes of between 4
million and 8 million tons in 2008, one third of which is already committed but
not yet priced. Arch also has unpriced volumes of between 65 million and 75
million tons for 2009 delivery, and between 85 million and 95 million tons for
2010 delivery.
"Looking ahead, we will continue to layer in new sales contracts when we
obtain attractive returns on our asset base," said Eaves. "However, we
will remain patient and selective. We strongly believe that our market-driven
approach will provide the best long-term return for our shareholders."
Arch Sees Continued Strength in Coal Markets in Both Near and Long
Term
Coal market trends have been favorable in 2008, setting the stage for a
long-term up-cycle in coal. According to the Edison Electric Institute, U.S.
power demand for electric generation has increased 0.6 percent year-to-date
through the third week of July. Based on internal analysis, Arch believes that
domestic coal consumption for electric generation has grown approximately 1.0
percent, exceeding that of overall electric power demand in the first half of
2008.
Also, U.S. coal supply growth has been constrained in 2008 despite prevailing
robust market conditions across many U.S. coal basins. According to government
estimates through the third week of July, domestic coal production has increased
0.9 percent year-to-date. In particular, Central Appalachian coal production has
declined slightly, while Powder River Basin production growth has slowed to 1.5
percent through the third week of July.
Furthermore, continued strength in the international coal marketplace is
contributing to strong domestic coal market conditions. Based on U.S. Department
of Commerce data, coal exports reached 32.0 million tons through May - a 56
percent increase from the prior year five-month period. At the same time, coal
imports into the United States totaled 13.3 million tons through the first five
months of the year, nearly 6 percent below the prior year-to-date import levels.
As a result, Arch now estimates a 4-million-ton decline in U.S. coal imports for
2008, while raising its forecast for U.S. coal exports to 83 million tons, which
represents a 24-million-ton increase over last year's improved levels.
Arch estimates that U.S. generators held 51 days of supply in coal stockpiles
at the end of June 2008, and continues to expect total stockpile levels to
decline as the year progresses. In particular, stockpile levels in the eastern
United States are believed to be significantly below year-ago levels, while
western U.S. stockpiles likely remain at target levels. Looking ahead, Arch
expects western stockpiles to decline during the second half of the year.
Over the next five years, new coal-fueled plant build-outs around the world
will expand the demand for coal globally. In the United States, approximately
17.5 gigawatts of new coal-fueled electric generating capacity are now under
construction or have recently started operation, representing an increase of 1
gigawatt since the first quarter. These plants will be phased in during the next
four years, and are expected to generate more than 62 million tons of
incremental annual coal demand. Roughly 75 percent of the new coal demand will
be needed by 2010, and more than half is likely to be supplied by Powder River
Basin coal according to company estimates. Another 7.3 gigawatts are estimated
to be in advanced stages of development, representing more than 20 million
additional tons of incremental annual coal demand, to be phased in by 2013. Arch
expects the majority of these plants to be built, and believes that more
proposed plants could move into the advanced development stage during the next
12 months.
On a global scale, Arch estimates that a substantial amount of new
coal-fueled capacity is being planned throughout the world, particularly in
Asia. Analyst estimates suggest that an additional 1.1 billion tons of coal will
be needed by 2012, essentially requiring the replication of the U.S. coal
industry during the next five years. Moreover, demand for coal used in
steel-making is projected to grow substantially in future years, with growth in
seaborne metallurgical coal demand likely to outpace any growth in seaborne
supply.
"Positive trends in domestic coal markets, coupled with sustained growth
in world coal markets, are supportive of current pricing levels," said
Leer. "We also expect the current market tightness to continue to
positively influence Powder River Basin fundamentals as the year
progresses."
Over the long term, the strengthening outlook for the advancement of
Btu-conversion technologies, such as coal-to-gas and coal-to-liquids, remains a
favorable development for the coal industry. With crude oil and natural gas
trading at elevated levels, public interest in developing affordable and
domestic forms of energy has reached a tipping point. Growing public concern
over skyrocketing energy costs is focusing attention on alternative fuel
sources, including coal-to-liquids.
"We believe the advancement of coal-conversion technologies is a
critical component of America's long-term energy plan," said Leer.
"The abundance and longevity of U.S. coal reserves - along with continued
elevated crude oil pricing and the geopolitical risk associated with the
location of major world oil and natural gas reserves - favor domestic coal
use."
"Arch's equity interest in DKRW Advanced Fuels, a coal-to-liquids
developer, may prove to be timely," continued Leer. "The proposed DKRW
facility in southern Wyoming would convert coal from Arch's Carbon Basin
reserves to gasoline and capture the carbon dioxide from the plant for use in
enhanced oil recovery. We believe this project - along with other announced
projects within the industry - can help America meet its goal of a secure and
clean energy future."
Arch Raises 2008 Guidance Range
Based on the company's current expectations regarding the future direction of
coal markets, Arch is raising its 2008 guidance range as follows:
- Earnings per fully diluted share are expected to be in the $2.50 to $2.85
range.
- Adjusted EBITDA is expected to be in the $767 million to $853 million
range.
- Sales volume from company controlled operations is now expected to be in
the 133 million to 137 million ton range, excluding purchased coal from
third parties.
- Capital spending is projected to remain in the $310 million to $340
million range, excluding reserve additions.
- Depreciation, depletion and amortization expense is expected to remain in
the $285 million to $295 million range.
- Arch's full year 2008 effective income tax rate is projected to be between
11 percent and 15 percent.
"We are on track to deliver our best earnings performance in company
history during 2008," said Leer. "Our raised guidance range signals
our confidence in coal market fundamentals and in the company's future growth
prospects. At the same time, our reduced volume guidance - which is in part due
to weather challenges experienced at our Powder River Basin operations during
the second quarter - also reflects our commitment to manage the business for the
long-term benefit of shareholders."
"We are in a position today to capitalize on positive secular global
trends given our low-cost operational profile and significant unpriced sales
position," continued Leer. "Additionally, we believe Arch's
diversified and strategic national reserve base, talented and experienced
workforce and strong balance sheet have strengthened the company's ability to
earn substantial returns and to generate significant free cash flow in future
years."
A conference call regarding Arch Coal's second quarter 2008 financial results
will be webcast live today at 11 a.m. E.D.T. The conference call can be accessed
via the "investor" section of the Arch Coal Web site (www.archcoal.com).
St. Louis-based Arch Coal is one of the largest U.S. coal producers, with
revenues of $2.4 billion in 2007. Through its national network of mines, Arch
supplies cleaner-burning, low-sulfur coal to fuel roughly 6 percent of the
nation's electricity. The company also ships coal to domestic and international
steel manufacturers as well as international power producers.
Forward-Looking Statements: This press release contains
"forward-looking statements" - that is, statements related to future,
not past, events. In this context, forward-looking statements often address our
expected future business and financial performance, and often contain words such
as "expects," "anticipates," "intends,"
"plans," "believes," "seeks," or "will."
Forward-looking statements by their nature address matters that are, to
different degrees, uncertain. For us, particular uncertainties arise from
changes in the demand for our coal by the domestic electric generation industry;
from legislation and regulations relating to the Clean Air Act and other
environmental initiatives; from operational, geological, permit, labor and
weather-related factors; from fluctuations in the amount of cash we generate
from operations; from future integration of acquired businesses; and from
numerous other matters of national, regional and global scale, including those
of a political, economic, business, competitive or regulatory nature. These
uncertainties may cause our actual future results to be materially different
than those expressed in our forward-looking statements. We do not undertake to
update our forward-looking statements, whether as a result of new information,
future events or otherwise, except as may be required by law. For a description
of some of the risks and uncertainties that may affect our future results, you
should see the risk factors described from time to time in the reports we file
with the Securities and Exchange Commission.



Arch Coal, Inc. and Subsidiaries
Reconciliation of Non-GAAP Measures
(In thousands)
Included in the accompanying release, we have disclosed certain non-GAAP
measures as defined by Regulation G. The following reconciles these items to net
income as reported under GAAP.
Adjusted EBITDA:
Adjusted EBITDA is defined as net income before the effect of net interest
expense; income taxes; our depreciation, depletion and amortization; expenses
resulting from early extinguishment of debt; and other non-operating expenses.
Adjusted EBITDA is not a measure of financial performance in accordance
with generally accepted accounting principles, and items excluded to calculate
Adjusted EBITDA are significant in understanding and assessing our financial
condition. Therefore, Adjusted EBITDA should not be considered in isolation
nor as an alternative to net income, income from operations, cash flows from
operations or as a measure of our profitability, liquidity or performance
under generally accepted accounting principles. We believe that Adjusted
EBITDA presents a useful measure of our ability to service and incur debt
based on ongoing operations. Furthermore, analogous measures are used by
industry analysts to evaluate operating performance. Investors should be aware
that our presentation of Adjusted EBITDA may not be comparable to similarly
titled measures used by other companies. The table below shows how we
calculate Adjusted EBITDA.

|