Halliburton Company
US ˙ NYSE ˙ US4062161017

SecurityHAL / Halliburton Company
InstitutionTortoise Capital Advisors, L.l.c.
Latest Disclosed Ownership244,800 shares
Latest Disclosed Value $ 9,544,752
Tortoise Capital Advisors, L.l.c. ownership in HAL / Halliburton Company

On May 15, 2026 - Tortoise Capital Advisors, L.l.c. filed a 13F-HR form disclosing ownership of 244,800 shares of Halliburton Company (US:HAL) valued at $9,544,752 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 14, 2019 disclosing 0 shares of Halliburton Company. The current value of the position is $10,044,144 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F Halliburton cs 406216101 244,800 244,800 9,545 0.0549
2019-11-14 2019-09-30 13F Halliburton COM 406216101 0 -34 -100.00 0 -100.00
2019-08-14 2019-06-30 13F Halliburton COM 406216101 34 0 0.00 1 0.00 0.0000
2019-05-13 2019-03-31 13F Halliburton COM 406216101 34 0 0.00 1 0.00 0.0000
2019-02-13 2018-12-31 13F Halliburton COM 406216101 34 0 0.00 1 0.00 0.0000
2018-12-13 2018-09-30 13F/A-1 Halliburton COM 406216101 34 -43,231 -99.92 1 -99.95 0.0000
2018-11-08 2018-09-30 13F Halliburton COM 406216101 34 -43,231 1
2018-08-07 2018-06-30 13F Halliburton COM 406216101 43,265 -11,618 -21.17 1,950 199.54 0.0125
2018-05-17 2018-03-31 13F/A-1 Halliburton COM 406216101 54,883 620 1.14 651 -75.45 0.0046
2018-05-15 2018-03-31 13F Halliburton COM 406216101 54,883 651
2018-02-14 2017-12-31 13F Halliburton COM 406216101 54,263 -40,510 -42.74 2,652 -39.20 0.0174
2017-11-17 2017-09-30 13F/A-1 HALLIBURTON COM 406216101 94,773 3,866 4.25 4,362 12.34 0.0285
2017-11-13 2017-09-30 13F HALLIBURTON COM 406216101 94,773 3,866 4,362
2017-11-13 2017-06-30 13F/A-1 HALLIBURTON COM 406216101 90,907 16,307 21.86 3,883 5.77 0.0252
2017-08-01 2017-06-30 13F HALLIBURTON COM 406216101 90,907 16,307 3,883
2017-05-15 2017-03-31 13F HALLIBURTON COM 406216101 74,600 41,114 122.78 3,671 102.71 0.0225
2017-02-14 2016-12-31 13F HALLIBURTON COM 406216101 33,486 16,951 102.52 1,811 144.07 0.0116
2016-11-14 2016-09-30 13F HALLIBURTON COM 406216101 16,535 -7,766 -31.96 742 -32.61 0.0050
2016-08-11 2016-06-30 13F HALLIBURTON COM 406216101 24,301 24,275 93,365.38 1,101 110,000.00 0.0077
2016-05-13 2016-03-31 13F HALLIBURTON COM 406216101 26 9 52.94 1 0.00 0.0000
2016-02-12 2015-12-31 13F HALLIBURTON COM 406216101 17 0 0.00 1 0.00 0.0000
2015-11-16 2015-09-30 13F HALLIBURTON COM 406216101 17 0 0.00 1 0.00 0.0000
2015-08-13 2015-06-30 13F HALLIBURTON COM 406216101 17 0 0.00 1 0.00 0.0000
2015-05-08 2015-03-31 13F HALLIBURTON COM 406216101 17 -20,483 -99.92 1 -99.88 0.0000
2015-02-10 2014-12-31 13F HALLIBURTON COM 406216101 20,500 -14,611 -41.61 806 -64.42 0.0048
2014-11-13 2014-09-30 13F HALLIBURTON COM 406216101 35,111 35,074 94,794.59 2,265 75,400.00 0.0125
2014-08-13 2014-06-30 13F HALLIBURTON COM 406216101 37 0 0.00 3 50.00 0.0000
2014-05-09 2014-03-31 13F HALLIBURTON COM 406216101 37 0 0.00 2 0.00 0.0000
2014-02-11 2013-12-31 13F HALLIBURTON COM 406216101 37 0 0.00 2 0.00 0.0000
2013-11-12 2013-09-30 13F HALLIBURTON COM 406216101 37 -42 -53.16 2 -33.33 0.0000
2013-08-13 2013-06-30 13F HALLIBURTON COM 406216101 79 79 3 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.