Document Format Files
Data Files
Seq | Description | Document | Type | Size |
---|---|---|---|---|
2 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | val-20240417.xsd | EX-101.SCH | 4382 |
3 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | val-20240417_def.xml | EX-101.DEF | 6450 |
4 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | val-20240417_lab.xml | EX-101.LAB | 8107 |
5 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | val-20240417_pre.xml | EX-101.PRE | 5085 |
151 | EXTRACTED XBRL INSTANCE DOCUMENT | val-20240417_htm.xml | XML | 73278 |
IRS No.: 980635229 | Fiscal Year End: 1231
Type: DEF 14A | Act: 34 | File No.: 001-08097 | Film No.: 24851786
SIC: 1381 Drilling Oil & Gas Wells
(CF Office: 01 Energy & Transportation)