Core Natural Resources reported $3.40B of remaining performance obligations at 30 Sep 2026 and down 6% from the previous quarter. That is 0.8 years of trailing revenue already under contract. Book-to-bill last quarter: 0.82.
Net new backlog added in the latest quarter: -$200M.
The company reports 24% of the backlog due within the first 3 months.
By backlog size it ranks 147th among US filers the cockpit tracks.
Core Natural Resources backlog history
Remaining performance obligations at each quarter end (bars) against trailing twelve-month revenue (line).
Amounts in USD. Source: SEC XBRL filings.
Quarter end
Backlog (RPO)
TTM revenue
Coverage
Customer prepayments
30 Sep 2026
$3.40B
$4.41B
0.8 yrs
n/a
30 Jun 2026
$3.60B
$4.27B
0.8 yrs
n/a
31 Mar 2026
$3.70B
$4.23B
0.9 yrs
n/a
31 Dec 2025
$3.50B
$4.16B
0.8 yrs
n/a
Questions
What is Core Natural Resources's backlog?
Core Natural Resources reported $3.40B of remaining performance obligations at 30 Sep 2026 and down 6% from the previous quarter. That is 0.8 years of trailing revenue already under contract. Book-to-bill last quarter: 0.82.
About these numbers
Remaining performance obligations (RPO) are revenue a company has contracted but not yet recognised, as reported in its SEC filings (XBRL tag RevenueRemainingPerformanceObligation). Coverage = backlog ÷ trailing twelve-month revenue. Book-to-bill = (change in backlog + revenue) ÷ revenue. Conversion = revenue recognised ÷ the backlog at the start of each quarter, summed over four quarters. Counterparty values come from company filings and releases.