** Shares of coal producer Arch Resources Inc ARCH.N fall
3.4% to $116.54
** Co reports Q2 profit of $4.04/shr, down nearly 80% from
last year, missing analysts' estimates of $5.76/shr - Refinitiv
** ARCH has missed earnings estimates for five previous
quarters
** Quarterly revenue of $757 mln misses analysts' avg.
estimate of $670 mln
** Challenges at West Elk mine in Colorado to continue to
hamper thermal segment's sales volumes and to pressure unit
costs in Q3 - co
** Including session losses, stock down 15% YTD
(Reporting by Arshreet Singh)
((Twitter: https://twitter.com/Arshreets))