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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000932471-14-003594
Filing Date
2014-02-11
Accepted
2014-02-11 15:05:15
Documents
1

Document Format Files

Seq Description Document Type Size
1 pioneerenergyservices.htm SC 13G/A 50449
  Complete submission text file 0000932471-14-003594.txt   52267
Mailing Address PO BOX 2600 V26 VALLEY FORGE PA 19482-2600
Business Address PO BOX 2600 V26 VALLEY FORGE PA 19482-2600 6106691000
VANGUARD GROUP INC (Filed by) CIK: 0000102909 (see all company filings)

IRS No.: 231945930 | State of Incorp.: PA | Fiscal Year End: 1231
Type: SC 13G/A

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.: 14593764
SIC: 1381 Drilling Oil & Gas Wells