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Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0001258897-20-001237
Filing Date
2020-02-12
Accepted
2020-02-12 11:45:18
Documents
1

Document Format Files

Seq Description Document Type Size
1 SCHEDULE 13G/A dfs494.htm SC 13G/A 51210
  Complete submission text file 0001258897-20-001237.txt   53222
Mailing Address 1250 N.E. LOOP 410 SUITE 1000 SAN ANTONIO TX 78209
Business Address 1250 N.E. LOOP 410 SUITE 1000 SAN ANTONIO TX 78209 2108287689
PIONEER ENERGY SERVICES CORP (Subject) CIK: 0000320575 (see all company filings)

IRS No.: 742088619 | State of Incorp.: TX | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-33018 | Film No.: 20602197
SIC: 1381 Drilling Oil & Gas Wells

Mailing Address 6300 BEE CAVE ROAD BUILDING ONE AUSTIN TX 78746
Business Address 6300 BEE CAVE ROAD BUILDING ONE AUSTIN TX 78746 (512) 306-7400
DIMENSIONAL FUND ADVISORS LP (Filed by) CIK: 0000354204 (see all company filings)

IRS No.: 222370029 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 0000