# EDGAR Filing Document

**Accession Number:** 0001517518
**File Stem:** 0001752724-23-010110
**Filing Date:** 2023-1
**Character Count:** 14769
**Document Hash:** 5eda1fd8829d3c0d48af28a0129088b2
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-23-010110.hdr.sgml**: 20230124

**ACCESSION NUMBER**: 0001752724-23-010110

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20221130

**FILED AS OF DATE**: 20230124

**DATE AS OF CHANGE**: 20230124

**PERIOD START**: 20221130

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ClearBridge Energy Midstream Opportunity Fund Inc.
- **CENTRAL INDEX KEY:** 0001517518
- **IRS NUMBER:** 451474578
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1130

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-22546
- **FILM NUMBER:** 23549123

**BUSINESS ADDRESS:**
- **STREET 1:** 620 EIGHTH AVENUE
- **STREET 2:** 47TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10018
- **BUSINESS PHONE:** 888-777-0102

**MAIL ADDRESS:**
- **STREET 1:** 620 EIGHTH AVENUE
- **STREET 2:** 47TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10018

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ClearBridge Energy MLP Opportunity Fund Inc.
- **DATE OF NAME CHANGE:** 20110406

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** ClearBridge Energy Midstream Opportunity Fund Inc.

- **b. Investment Company Act file number:** 811-22546

- **c. CIK number of Registrant:** 0001517518

- **d. LEI of Registrant:** 549300U6RAJWN6OONX12

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** 620 Eighth Avenue

  - **City:** New York

  - **State:** NY

  - **Foreign country:** US

  - **Zip / Postal Code:** 10018

  - **Telephone number:** 1-888-777-0102

**Item A.2. Information about the Series.**

- **a. Name of Series:** ClearBridge Energy Midstream Opportunity Fund Inc.

- **c. LEI of Series:** 549300U6RAJWN6OONX12

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2022-11-30

- **b. Date as of which information is reported:** 2022-11-30

**Item A.4. Final filing**

Does the Fund anticipate that this will be its final filing on Form N-PORT? **No**

### Fund Information

**Total Assets:** $673093681.14

**Total Liabilities:** $208513629.68

**Net Assets:** $464580051.46

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000000000 | -12.65%              | 21.07%               | 2.22%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $4416349.18              | $-63110927.24                              |
| Month 2  | $24153040.60             | $46381400.18                               |
| Month 3  | $876526.54               | $14060427.96                               |

### Schedule of Portfolio Investments

| Name                                                   | Title                                                  | Identifiers                                   | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   |   Fair Value Level | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Suburban Propane Partners LP                           | Suburban Propane Partners LP                           | CUSIP: 864482104<br>LEI: JJAX4X60DE65EYFOTY73 | Long             | EC               | CORP              | US        |     66060 | NS      | $1087347.60   | 0.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Plains GP Holdings LP                                  | Plains GP Holdings LP                                  | CUSIP: 72651A207<br>LEI: 549300O56BSKRD8FAM12 | Long             | EC               | CORP              | US        |   1990665 | NS      | $26336497.95  | 5.67%             |  |  |  | No            |                  1 | On Loan: No      |
| Energy Transfer LP                                     | Energy Transfer LP                                     | CUSIP: 29273V100<br>LEI: MTLVN9N7JE8MIBIJ1H73 | Long             | EC               | CORP              | US        |   4112293 | NS      | $51568154.22  | 11.10%            |  |  |  | No            |                  1 | On Loan: No      |
| Equitrans Midstream Corp                               | Equitrans Midstream Corp                               | CUSIP: 294600101<br>LEI: 549300RH0NLJNZ5SXU64 | Long             | EC               | CORP              | US        |    714724 | NS      | $5996534.36   | 1.29%             |  |  |  | No            |                  1 | On Loan: No      |
| TARGA RESOURCES CORP                                   | TARGA RESOURCES CORP                                   | CUSIP: 87612G101<br>LEI: 5493003QENHHS261UR94 | Long             | EC               | CORP              | US        |    564753 | NS      | $42011975.67  | 9.04%             |  |  |  | No            |                  1 | On Loan: No      |
| PBF Logistics LP                                       | PBF LOGISTICS LP                                       | CUSIP: 69318Q104<br>LEI: 529900XB9LDTN4488F04 | Long             | EC               | CORP              | US        |    475580 | NS      | $9464042.00   | 2.04%             |  |  |  | No            |                  1 | On Loan: No      |
| Green Plains Partners LP                               | Green Plains Partners LP                               | CUSIP: 393221106<br>LEI: 549300RTI0PBG5HI4Z38 | Long             | EC               | CORP              | US        |    200000 | NS      | $2478000.00   | 0.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Enviva Inc                                             | Enviva Inc                                             | CUSIP: 29415B103<br>LEI: 549300WH5VXDEFM5KR81 | Long             | EC               | CORP              | US        |    266000 | NS      | $15095500.00  | 3.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Kinder Morgan Inc                                      | Kinder Morgan Inc                                      | CUSIP: 49456B101<br>LEI: 549300WR7IX8XE0TBO16 | Long             | EC               | CORP              | US        |   1249630 | NS      | $23892925.60  | 5.14%             |  |  |  | No            |                  1 | On Loan: No      |
| Holly Energy Partners LP                               | Holly Energy Partners LP                               | CUSIP: 435763107<br>LEI: 529900NVV7ODCT0QCG29 | Long             | EC               | CORP              | US        |    443232 | NS      | $8297303.04   | 1.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Antero Midstream Corp                                  | Antero Midstream Corp                                  | CUSIP: 03676B102<br>LEI: N/A                  | Long             | EC               | CORP              | US        |   2010686 | NS      | $22781072.38  | 4.90%             |  |  |  | No            |                  1 | On Loan: No      |
| Williams Cos Inc/The                                   | Williams Cos Inc/The                                   | CUSIP: 969457100<br>LEI: D71FAKCBLFS2O0RBPG08 | Long             | EC               | CORP              | US        |    921675 | NS      | $31982122.50  | 6.88%             |  |  |  | No            |                  1 | On Loan: No      |
| Hess Midstream LP                                      | Hess Midstream LP                                      | CUSIP: 428103105<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    480353 | NS      | $15001424.19  | 3.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Genesis Energy LP                                      | Genesis Energy LP                                      | CUSIP: 371927104<br>LEI: 549300VJ5D6MDK138782 | Long             | EC               | CORP              | US        |   1060650 | NS      | $11211070.50  | 2.41%             |  |  |  | No            |                  1 | On Loan: No      |
| ONEOK INC                                              | ONEOK INC                                              | CUSIP: 682680103<br>LEI: 2T3D6M0JSY48PSZI1Q41 | Long             | EC               | CORP              | US        |    362917 | NS      | $24286405.64  | 5.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Delek Logistics Partners LP                            | Delek Logistics Partners LP                            | CUSIP: 24664T103<br>LEI: 549300UVYITDIU51P724 | Long             | EC               | CORP              | US        |    136030 | NS      | $6964736.00   | 1.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Plains All American Pipeline L                         | Plains All American Pipeline LP                        | CUSIP: 726503105<br>LEI: 5521FA2ITF25TVH63740 | Long             | EC               | CORP              | US        |   2035671 | NS      | $25283033.82  | 5.44%             |  |  |  | No            |                  1 | On Loan: No      |
| MPLX LP                                                | MPLX LP                                                | CUSIP: 55336V100<br>LEI: 5493000CZJ19CK4P3G36 | Long             | EC               | CORP              | US        |   1339331 | NS      | $45523860.69  | 9.80%             |  |  |  | No            |                  1 | On Loan: No      |
| Enterprise Products Partners L                         | Enterprise Products Partners LP                        | CUSIP: 293792107<br>LEI: K4CDIF4M54DJZ6TB4Q48 | Long             | EC               | CORP              | US        |   1744049 | NS      | $43269855.69  | 9.31%             |  |  |  | No            |                  1 | On Loan: No      |
| DT Midstream Inc                                       | DT Midstream Inc                                       | CUSIP: 23345M107<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    120000 | NS      | $7239600.00   | 1.56%             |  |  |  | No            |                  1 | On Loan: No      |
| DCP Midstream LP                                       | DCP Midstream LP                                       | CUSIP: 23311P100<br>LEI: 52990024YYS3MLGW0E91 | Long             | EC               | CORP              | US        |    728976 | NS      | $28677915.84  | 6.17%             |  |  |  | No            |                  1 | On Loan: No      |
| Western Midstream Partners LP                          | Western Midstream Partners LP                          | CUSIP: 958669103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |   1669556 | NS      | $46714176.88  | 10.06%            |  |  |  | No            |                  1 | On Loan: No      |
| TC Energy Corp                                         | TC Energy Corp                                         | CUSIP: 87807B107<br>LEI: 549300UGKOFV2IWJJG27 | Long             | EC               | CORP              | CA        |    385541 | NS      | $17148863.68  | 3.69%             |  |  |  | No            |                  1 | On Loan: No      |
| Enbridge Inc                                           | Enbridge Inc                                           | CUSIP: 29250N105<br>LEI: 98TPTUM4IVMFCZBCUR27 | Long             | EC               | CORP              | CA        |    603209 | NS      | $24906499.61  | 5.36%             |  |  |  | No            |                  1 | On Loan: No      |
| Brookfield Infrastructure Part                         | Brookfield Infrastructure Partners LP                  | CUSIP: 000000000<br>LEI: 549300WEH5R2OODI7Y90 | Long             | EC               | CORP              | CA        |    531566 | NS      | $19939040.66  | 4.29%             |  |  |  | No            |                  1 | On Loan: No      |
| NuStar Energy LP                                       | NuStar Energy LP                                       | CUSIP: 67058H102<br>LEI: 5493003BMLTUIEG2LG44 | Long             | EC               | CORP              | US        |    553470 | NS      | $9038165.10   | 1.95%             |  |  |  | No            |                  1 | On Loan: No      |
| Aris Water Solution Inc                                | Aris Water Solution Inc                                | CUSIP: 04041L106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    183470 | NS      | $2902495.40   | 0.62%             |  |  |  | No            |                  1 | On Loan: No      |
| JPMorgan 100% US Treasury Securities Money Market Fund | JPMorgan 100% US Treasury Securities Money Market Fund | CUSIP: 4812A2835<br>LEI: 549300BS6M6EE7LNA816 | Long             | STIV             | RF                | US        |  21820329 | NS      | $21820328.66  | 4.70%             |  |  |  | No            |                  1 | On Loan: No      |
| Cheniere Energy Partners LP                            | Cheniere Energy Partners LP                            | CUSIP: 16411Q101<br>LEI: 5493005UEC8AZ34LDV29 | Long             | EC               | CORP              | US        |    439793 | NS      | $27302349.44  | 5.88%             |  |  |  | No            |                  1 | On Loan: No      |
| Magellan Midstream Partners LP                         | Magellan Midstream Partners LP                         | CUSIP: 559080106<br>LEI: MZF5TI8NFVZZNUSKDL39 | Long             | EC               | CORP              | US        |    664890 | NS      | $35039703.00  | 7.54%             |  |  |  | No            |                  1 | On Loan: No      |
| Crestwood Equity Partners LP                           | Crestwood Equity Partners LP                           | CUSIP: 226344208<br>LEI: 549300CUY0F1TYDLDL45 | Long             | EC               | CORP              | US        |    631490 | NS      | $18704733.80  | 4.03%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2023-01-24

**Name of Applicant:** ClearBridge Energy Midstream Opportunity Fund Inc.

**Signature:** Christopher Berarducci

**Name of Signer:** Christopher Berarducci

**Title:** Principal Financial Officer