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SEC Edgar

HELMERICH & PAYNE INC

SIC 1381 · Drilling Oil & Gas Wells
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$HP

HELMERICH & PAYNE INC

CIK:0000046765|SEC Filings

INDENTURES

EX-4.5
tm2423608d3_ex4-5.htm
2024-09-17T00:00:00Z
EX-4.3
tm2423608d3_ex4-3.htm
2024-09-17T00:00:00Z
EX-4.2
tm2423608d3_ex4-2.htm
2024-09-17T00:00:00Z
EX-4.4
tm2423608d3_ex4-4.htm
2024-09-17T00:00:00Z
EX-4.3
tm2128379d3_ex4-3.htm
2021-09-29T00:00:00Z
EX-4.2
tm2128379d3_ex4-2.htm
2021-09-29T00:00:00Z
EX-4.1
a18-41882_1ex4d1.htm
2018-12-20T00:00:00Z
EX-4.3
a18-41882_1ex4d3.htm
2018-12-20T00:00:00Z
EX-4.2
a18-41882_1ex4d2.htm
2018-12-20T00:00:00Z
EX-4.6
a18-41882_1ex4d6.htm
2018-12-20T00:00:00Z
EX-4.2
a15-7016_1ex4d2.htm
2015-03-19T00:00:00Z
EX-4.1
a15-7016_1ex4d1.htm
2015-03-19T00:00:00Z
EX-4.4
a15-7016_1ex4d4.htm
2015-03-19T00:00:00Z
EX-4.7
a06-19202_1ex4d7.htm
2006-09-06T00:00:00Z
EX-4.3
a06-19202_1ex4d3.htm
2006-09-06T00:00:00Z
EX-4.5
a06-19202_1ex4d5.htm
2006-09-06T00:00:00Z
EX-4.6
a06-19202_1ex4d6.htm
2006-09-06T00:00:00Z
EX-4.1
a06-19202_1ex4d1.htm
2006-09-06T00:00:00Z
EX-4.1
hp-20230930xexx41.htm
2023-11-08T00:00:00Z
EX-4.1
hp-exhibit41.htm
2021-11-18T00:00:00Z