# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001604665-26-000010
Filing Date
2026-03-04
Accepted
2026-03-04 13:01:38
Documents
95
Period of Report
2025-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-K | wlkp-20251231.htm iXBRL | 10-K | 1605482
2 | EX-21.1 | ex21112312510k.htm | EX-21.1 | 3272
3 | EX-23.1 | ex23112312510k.htm | EX-23.1 | 2122
4 | EX-31.1 | ex31112312510k.htm | EX-31.1 | 10818
5 | EX-31.2 | ex31212312510k.htm | EX-31.2 | 10324
6 | EX-32.1 | ex32112312510k.htm | EX-32.1 | 7713
12 | GRAPHIC | wlkp-20251231_g1.jpg | GRAPHIC | 67565
| Complete submission text file | 0001604665-26-000010.txt |  | 7599986

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
7 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | wlkp-20251231.xsd | EX-101.SCH | 57601
8 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | wlkp-20251231_cal.xml | EX-101.CAL | 59012
9 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | wlkp-20251231_def.xml | EX-101.DEF | 336740
10 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | wlkp-20251231_lab.xml | EX-101.LAB | 595617
11 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | wlkp-20251231_pre.xml | EX-101.PRE | 511950
98 | EXTRACTED XBRL INSTANCE DOCUMENT | wlkp-20251231_htm.xml | XML | 884341

Mailing Address 2801 POST OAK BOULEVARD SUITE 600 HOUSTON TX 77056
Business Address 2801 POST OAK BOULEVARD SUITE 600 HOUSTON TX 77056 (713) 960-9111
Westlake Chemical Partners LP (Filer) CIK: 0001604665 (see all company filings)

EIN.: 320436529 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-36567 | Film No.: 26719968
SIC: 2860 Industrial Organic Chemicals
(CF Office: 08 Industrial Applications and Services)