Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001437749-26-010434
Filing Date
2026-03-31
Accepted
2026-03-30 20:06:13
Documents
63
Period of Report
2025-12-31

Document Format Files

Seq Description Document Type Size
1 FORM 10-K ckx20251231_10k.htm   iXBRL 10-K 1004309
2 EXHIBIT 23 ex_932887.htm EX-23 2320
3 EXHIBIT 31.1 ex_930006.htm EX-31.1 12040
4 EXHIBIT 31.2 ex_930007.htm EX-31.2 12056
5 EXHIBIT 32.1 ex_930008.htm EX-32.1 4351
6 EXHIBIT 32.2 ex_930009.htm EX-32.2 4395
  Complete submission text file 0001437749-26-010434.txt   5073075

Data Files

Seq Description Document Type Size
7 XBRL TAXONOMY EXTENSION SCHEMA ckx-20251231.xsd EX-101.SCH 43134
8 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE ckx-20251231_cal.xml EX-101.CAL 38779
9 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE ckx-20251231_def.xml EX-101.DEF 298241
10 XBRL TAXONOMY EXTENSION LABEL LINKBASE ckx-20251231_lab.xml EX-101.LAB 257343
11 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE ckx-20251231_pre.xml EX-101.PRE 323825
67 EXTRACTED XBRL INSTANCE DOCUMENT ckx20251231_10k_htm.xml XML 723309
Mailing Address 2417 SHELL BEACH DRIVE LAKE CHARLES LA 70601
Business Address 2417 SHELL BEACH DRIVE LAKE CHARLES LA 70601 (337) 493-2399
CKX LANDS, INC. (Filer) CIK: 0000352955 (see all company filings)

EIN.: 720144530 | State of Incorp.: LA | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-31905 | Film No.: 26816190
SIC: 1311 Crude Petroleum & Natural Gas
(CF Office: 01 Energy & Transportation)