Commitments and Contingencies	9 Months Ended
Sep. 30, 2026
Commitments And Contingencies Disclosure [Line Items]
Commitments and Contingencies	7. Commitments and Contingencies Commitments For information regarding investment commitments, see the Aggregator’s condensed consolidated financial statements. To the extent funded, these investments are expected to reside at the Aggregator but may be funded from BXINFRA U.S.’s available liquidity, including proceeds from the issuance of Units by BXINFRA U.S. and available borrowing capacity under the Line of Credit. For information regarding the Line of Credit, see Note 4. “Line of Credit Agreement.” Contingencies BXINFRA U.S. may, from time to time, be party to various legal matters arising in the ordinary course of business, including claims and litigation proceedings. As of September 30, 2026, BXINFRA U.S. was not subject to any material litigation nor was BXINFRA U.S. aware of any material litigation threatened against it. Indemnifications In the normal course of business, BXINFRA U.S. enters into contracts that contain a variety of indemnification arrangements. BXINFRA U.S.’s exposure under these arrangements, if any, cannot be quantified. However, BXINFRA U.S. has not had any claims or losses pursuant to these indemnification arrangements and expects the potential for a material loss to be remote as of September 30, 2026.
Blackstone Infrastructure Strategies (TE) L.P.
Commitments And Contingencies Disclosure [Line Items]
Commitments and Contingencies	6. Commitments and Contingencies Commitments For information regarding investment commitments, see the Aggregator’s condensed consolidated financial statements. To the extent funded, these investments are expected to reside at the Aggregator but may be funded from the Feeder’s available liquidity, including proceeds from the issuance of Units by the Feeder. Contingencies The Feeder may, from time to time, be party to various legal matters arising in the ordinary course of business, including claims and litigation proceedings. As of September 30, 2026, the Feeder was not subject to any material litigation nor was the Feeder aware of any material litigation threatened against it. Indemnifications In the normal course of business, the Feeder enters into contracts that contain a variety of indemnification arrangements. The Feeder’s exposure under these arrangements, if any, cannot be quantified. However, the Feeder has not had any claims or losses pursuant to these indemnification arrangements and expects the potential for a material loss to be remote as of September 30, 2026.
BXINFRA Aggregator (CYM) L.P.
Commitments And Contingencies Disclosure [Line Items]
Commitments and Contingencies	9. Commitments and Contingencies Commitments The Investment Manager agreed to advance organizational and offering expenses, other than unitholder servicing fees, on BXINFRA’s behalf through the first anniversary of the Initial Closing Date (such first anniversary, the “Effective Date”). The Aggregator will reimburse the Investment Manager for all such advanced expenses ratably over the 60 months following the Effective Date. As of December 31, 2025, the Investment Manager and its affiliates have incurred organizational and offering expenses on BXINFRA’s behalf in the amount of $3.6 million of which $3.2 million relates to Organizational Expenses and was expensed as incurred and $0.4 million relates to offering costs that are capitalized as a deferred expense and amortized over 12 months. During the three and nine months ended September 30, 2026, the Investment Manager advanced $0.1 million and $0.6 million, respectively, of additional Organizational Expenses on BXINFRA’s behalf. As of September 30, 2026, the Aggregator had Organizational Cost Payable of $0.1 million due to the Investment Manager and no Offering Cost Payable. As of September 30, 2026, the Aggregator had unfunded commitments to existing investments of $2.0 billion, of which $897.0 million is committed to other Blackstone funds, and had no additional conditional commitments to new investments, which excludes investment commitments of the BXINFRA Warehouse as it is not certain whether BXINFRA will ultimately acquire any such investments. Conditional commitments are held among the BXINFRA Fund Program and BXINFRA’s allocation will be determined at closing. Conditional commitments are subject to certain terms and conditions prior to closing of the relevant transactions and there can be no assurance that such transactions will close as expected or at all. Contingencies The Aggregator may, from time to time, be party to various legal matters arising in the ordinary course of business, including claims and litigation proceedings. As of September 30, 2026, the Aggregator was not subject to any material litigation nor was the Aggregator aware of any material litigation threatened against it. Indemnifications In the normal course of business, the Aggregator enters into contracts that contain a variety of indemnification arrangements. The Aggregator’s exposure under these arrangements, if any, cannot be quantified. However, the Aggregator has not had any claims or losses pursuant to these indemnification arrangements and expects the potential for a material loss to be remote as of September 30, 2026.

Commitments and Contingencies

9 Months Ended

Sep. 30, 2026

Commitments And Contingencies Disclosure [Line Items]

7. Commitments and Contingencies

Commitments

For information regarding investment commitments, see the Aggregator’s condensed consolidated financial statements. To the extent funded, these investments are expected to reside at the Aggregator but may be funded from BXINFRA U.S.’s available liquidity, including proceeds from the issuance of Units by BXINFRA U.S. and available borrowing capacity under the Line of Credit. For information regarding the Line of Credit, see Note 4. “Line of Credit Agreement.”

Contingencies

BXINFRA U.S. may, from time to time, be party to various legal matters arising in the ordinary course of business, including claims and litigation proceedings. As of September 30, 2026, BXINFRA U.S. was not subject to any material litigation nor was BXINFRA U.S. aware of any material litigation threatened against it.

Indemnifications

In the normal course of business, BXINFRA U.S. enters into contracts that contain a variety of indemnification arrangements. BXINFRA U.S.’s exposure under these arrangements, if any, cannot be quantified. However, BXINFRA U.S. has not had any claims or losses pursuant to these indemnification arrangements and expects the potential for a material loss to be remote as of September 30, 2026.

Blackstone Infrastructure Strategies (TE) L.P.

Commitments And Contingencies Disclosure [Line Items]

Commitments and Contingencies

6. Commitments and Contingencies

Commitments

Contingencies

The Feeder may, from time to time, be party to various legal matters arising in the ordinary course of business, including claims and litigation proceedings. As of September 30, 2026, the Feeder was not subject to any material litigation nor was the Feeder aware of any material litigation threatened against it.

Indemnifications

In the normal course of business, the Feeder enters into contracts that contain a variety of indemnification arrangements. The Feeder’s exposure under these arrangements, if any, cannot be quantified. However, the Feeder has not had any claims or losses pursuant to these indemnification arrangements and expects the potential for a material loss to be remote as of September 30, 2026.

BXINFRA Aggregator (CYM) L.P.

Commitments And Contingencies Disclosure [Line Items]

Commitments and Contingencies

9. Commitments and Contingencies

Commitments

The Investment Manager agreed to advance organizational and offering expenses, other than unitholder servicing fees, on BXINFRA’s behalf through the first anniversary of the Initial Closing Date (such first anniversary, the “Effective Date”). The Aggregator will reimburse the Investment Manager for all such advanced expenses ratably over the 60 months following the Effective Date. As of December 31, 2025, the Investment Manager and its affiliates have incurred organizational and offering expenses on BXINFRA’s behalf in the amount of $3.6 million of which $3.2 million relates to Organizational Expenses and was expensed as incurred and $0.4 million relates to offering costs that are capitalized as a deferred expense and amortized over 12 months. During the three and nine months ended September 30, 2026, the Investment Manager advanced $0.1 million and $0.6 million, respectively, of additional Organizational Expenses on BXINFRA’s behalf. As of September 30, 2026, the Aggregator had Organizational Cost Payable of $0.1 million due to the Investment Manager and no Offering Cost Payable.

As of September 30, 2026, the Aggregator had unfunded commitments to existing investments of $2.0 billion, of which $897.0 million is committed to other Blackstone funds, and had no additional conditional commitments to new investments, which excludes investment commitments of the BXINFRA Warehouse as it is not certain whether BXINFRA will ultimately acquire any such investments. Conditional commitments are held among the BXINFRA Fund Program and BXINFRA’s allocation will be determined at closing. Conditional commitments are subject to certain terms and conditions prior to closing of the relevant transactions and there can be no assurance that such transactions will close as expected or at all.

Contingencies

The Aggregator may, from time to time, be party to various legal matters arising in the ordinary course of business, including claims and litigation proceedings. As of September 30, 2026, the Aggregator was not subject to any material litigation nor was the Aggregator aware of any material litigation threatened against it.

Indemnifications

In the normal course of business, the Aggregator enters into contracts that contain a variety of indemnification arrangements. The Aggregator’s exposure under these arrangements, if any, cannot be quantified. However, the Aggregator has not had any claims or losses pursuant to these indemnification arrangements and expects the potential for a material loss to be remote as of September 30, 2026.