**Exhibit      31.2**

**Certification      Required by Rule 13a-14(a) **

**or      Rule 15d-14(a)**

| 1.     | I                have reviewed this annual report on Form 10-K of NGP Capital Resources                Company;                                                                                                                                                                                                                                                                                                    |
|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                                                                                                                                                                                                                               |
| 2.     | Based                on my knowledge, this annual report does not contain any untrue statement                of a material fact or omit to state a material fact necessary to                make the                statements made, in light of the circumstances under which such statements                were made, not misleading with respect to the period covered by this                annual report; |
|   |                                                                                                                                                                                                                                                                                                                                                                                                               |
| 3.     | Based                on my knowledge, the financial statements, and other financial information                included in this annual report, fairly present in all material respects                the financial condition, results of operations and cash flows of                the                registrant as of, and for, the periods presented in this annual                report;                    |
|   |                                                                                                                                                                                                                                                                                                                                                                                                               |
| 4.     | The                registrant’s other certifying officer(s) and I are responsible for                establishing and maintaining disclosure controls and procedures (as                defined in Exchange Act Rules 13a-15(e) and 15d-15(e) ) and internal                control over financial reporting (as defined in Exchange Act Rules                13a-15(f)) for the registrant and have:        |
|   |                                                                                                                                                                                                                                                                                                                                                                                                               |

|   | a)    designed                such                disclosure controls and procedures, or caused such disclosure controls                and                procedures to be designed under my supervision, to ensure that material                information relating to the registrant, including its consolidated                subsidiaries, is made known to me by others within those entities,                particularly during the period in which this annual report is being                prepared;                               |
|--------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|   | b)    designed                such                internal control over financial reporting, or caused such internal                control                over financial reporting to be designed under our supervision, to                provide                reasonable assurance regarding the reliability of financial reporting                and                the preparation of financial statements for external purposes in                accordance with generally accepted accounting                principles;              |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|   | c)    evaluated                the                effectiveness of the registrant’s disclosure controls and procedures and                presented in this annual report my conclusions about the effectiveness                of                the disclosure controls and procedures, as of the end of the period                covered by this report based on such evaluation; and                                                                                                                                                  |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|   | d)    disclosed                in                this annual report any change in the registrant’s internal control over                financial reporting that occurred during the registrant’s most recent                fiscal quarter (the registrant’s fourth fiscal quarter in the case of an                annual report) that has materially affected, or is reasonably likely                to                materially affect, the registrant’s internal control over financial                reporting; |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |

| 5.     | The                registrant’s other certifying officer and I have disclosed, based on our                most recent evaluation of internal control over financial reporting,                to                the registrant’s auditors: |
|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                                                                    |

|   | a)    all                significant deficiencies and material weaknesses in the design or                operation of internal control over financial reporting which are                reasonably likely to adversely affect the registrant’s ability to record,                process, summarize and report financial information;                and |
|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                                                                                                                                                                                                 |
|   | b)    any                fraud, whether or not material, that involves management or other                employees who have a significant role in the registrant’s internal control                over financial reporting.                                                                                                                              |

|                                   |                                               |         |
|----------------------------------------|----------------------------------------------------|--------------|
|                                   |                                               |
|                              |                                          |    |
| Date: March              13, 2006 | By:                                      |         |
|                                   | Stephen              K. Gardner                    |
|                                   | Chief              Financial Officer and Treasurer |