| Company | Reserves, mln t | Production/yr, mln t | R/P, yrs |
|---|---|---|---|
| United States Steel | 394.20 | 15.63 | 25.2 |
| NLMKRU | — | 14.24 | — |
| MMKRU | — | 10.16 | — |
All figures are in millions of the metric unit; within a commodity the unit is consistent (oil & gas harmonised to mln boe, gas converted at 6 mcf ≈ 1 boe). Source — issuers' Production & Reserves disclosures (SEC / IFRS / KASE).