BOEM Supplemental Pipeline Bonds. To cover the various obligations of lessees and rights-of-way holders operating in federal waters of the Gulf of Mexico, BOEM evaluates an operator's financial ability to carry out present and future obligations to determine whether the operator must provide additional security beyond the statutory bonding requirements. Such obligations include the cost of plugging and abandoning wells and decommissioning pipelines and platforms at the end of production or service activities. Once plugging and abandonment work has been completed, the collateral backing the financial assurance is released by BOEM.
Historically, BDPL maintained $0.9 million in pipeline bonds with BOEM to decommission its trunk pipeline offshore in federal waters. In March 2018, BOEM ordered BDPL to provide additional financial assurance totaling approximately $4.8 million for five (5) existing pipeline rights-of-way, an increase of approximately $3.9 million. In June 2018, BOEM issued BDPL INCs for each right-of-way that failed to comply. BDPL appealed the INCs to the IBLA. Although the IBLA granted multiple extension requests, the Office of the Solicitor of the U.S. Department of the Interior indicated that BOEM would not consent to further extensions. The solicitor's office signaled that BDPL's adherence to decommissioning its offshore pipelines and platform would likely help in future discussions with BOEM related to the INCs. Fulfilling abandonment obligations related to the subject assets will significantly reduce or eliminate the amount of supplemental pipeline bonds required by BOEM, which may serve to partially or fully resolve the INCs.
BDPL's pending appeal of the BOEM INCs does not relieve BDPL of its obligations to provide additional financial assurance or of BOEM's authority to impose financial penalties. There can be no assurance that we will be able to meet additional supplemental pipeline bond requirements. If BDPL is required by BOEM to provide significant additional supplemental pipeline bonds or is assessed significant penalties under the INCs, we will experience a significant and material adverse effect on our operations, liquidity, and financial condition. We cannot predict the outcome of the supplemental pipeline bond INCs. Accordingly, we did not record a liability on our consolidated balance sheets as of December 31, 2023 and 2022. At both December 31, 2023 and 2022, BDPL maintained approximately $0.9 million in pipeline rights-of-way surety bonds issued to BOEM through RLI Corp. ("RLI"). However, as noted below, RLI desires to reduce its risk profile related to BDPL's bonds. Of the pipeline rights-of-way bonds, $0.7 million was credit-backed and $0.2 million was cash-backed.
RLI Surety Bonds. Blue Dolphin currently has several surety bonds through RLI as required by different regulatory agencies, including BOEM and the Railroad Commission of Texas. The bonds total approximately $1.25 million in the aggregate, of which $0.2 million is collateralized in cash. In June, July, and December 2023, RLI demanded Blue Dolphin provide additional cash collateral or a letter of credit totaling approximately $1.0 million or provide bond exonerations and replacement bonds. Although Blue Dolphin received a proposal from another surety to replace the RLI bonds at a 50% collateral requirement, management was hopeful Blue Dolphin and RLI could reach an understanding whereby the existing bonds could be maintained until BDPL completed decommissioning of the subject assets. Abandonment of BDPL's offshore pipeline and platform assets will eliminate the need for all BOEM supplemental pipeline bonds, reducing the amount of surety bonds held by RLI from $1.25 million to $0.25 million. On February 19, 2024, RLI filed suit against Blue Dolphin, BDPL, and BDEX seeking an injunction for the payment of approximately $1.0 million of additional collateral for the bonds.
BSEE Offshore Platform Inspections and Decommissioning Obligations. BDPL has pipelines and platform assets subject to BSEE's idle iron regulations. Idle iron regulations require lessees and rights-of-way holders to permanently abandon and/or remove platforms and other structures when they are no longer useful for operations. Until such structures are abandoned or removed, lessees and rights-of-way holders are required to inspect and maintain the assets in accordance with regulatory requirements.
Platform Inspections. We are required by BSEE to perform annual structural inspections of our offshore platform, as well as to perform monthly platform checks of navigational aids, fog horns, and lifesaving equipment. In March 2023, BSEE issued BDPL an INC for failing to perform the required 2021 and 2022 structural surveys for the GA-288C platform and for failing to provide BSEE with such survey results. In April 2023, BSEE granted BDPL an extension for completing the required platform inspection until May 30, 2023. Although BDPL requested a second extension, BSEE denied BDPL's request. BDPL completed the platform inspection on August 26, 2023 and submitted the survey report to BSEE on September 6, 2023. Because BDPL failed to comply with the INC within the allotted timeframe, BSEE proposed an administrative civil penalty of approximately $0.2 million on October 24, 2023. The proposed administrative civil penalty was finalized on January 26, 2024, for $0.2 million. We recorded a liability for the maximum proposed amount of $0.2 million on our consolidated balance sheets within accrued expenses and other current liabilities as of December 31, 2023. BDPL filed an appeal to the civil penalty on March 25, 2024.
Decommissioning Obligations. Because our pipelines and facilities assets have been inactive for an extended period, BOEM mandated that they be decommissioned. In October 2023, management met BSEE to discuss BDPL's path forward for meeting decommissioning requirements. Management worked with a consultant to develop a decommissioning plan, and BDPL submitted its decommissioning plan to the agency in November 2023. Although the decommissioning of these assets was delayed due to cash constraints associated with historical net losses and the impact of COVID-19, a significant portion of the decommissioning project was completed from late December 2023 to mid-February 2024. Additional work is planned for the second quarter of 2024. Based on resource availability and projected weather conditions, we believe decommissioning and remediation of all associated INCs will be completed by the end of the second quarter 2024. However, BDPL's work plan does not relieve BDPL of its obligations to comply with BSEE's mandate or BSEE's authority to impose financial penalties. Further, there can be no assurance that BDPL can complete anticipated work or predict the outcome of BSEE INCs. Accordingly, we did not record a liability related to potential penalties on our consolidated balance sheets as of December 31, 2023 and 2022. Due to BDPL's failure to comply with BSEE requirements, BDPL could still be subject to regulatory oversight and enforcement, including but not limited to failing to correct an INC, civil penalties, and revocation of BDPL's operator designation, which could have a material adverse effect on our earnings, cash flows, and liquidity. At December 31, 2023 and 2022, BDPL maintained $4.5 million and $3.7 million, respectively, in AROs related to the abandonment of these assets, which amount does not include potential penalties. OSHA Settlement Agreement. In September 2022, we entered into an Informal Settlement Agreement with OSHA related to process safety management violations at the Nixon refinery. Under the agreement, we paid penalties totaling $0.05 million in November 2022. We remediated a significant portion of identified violations before December 31, 2022. We remediated the remaining violations on a progressive schedule by April 2023. TCEQ Proposed Agreed Order. In October 2021, LRM received a proposed agreed order from the TCEQ for alleged solid and hazardous waste violations discovered during an investigation from January to March 2020. The proposed agreed order assessed an administrative penalty of $0.4 million and identified actions needed to correct the alleged violations. In September 2023, TCEQ presented its final penalty offer of $0.35 million, which LRM accepted. Although LRM believes the penalty matter is resolved, LRM expects to continue working with TCEQ to remediate certain open items fully. At December 31, 2023, we reflected approximately $0.4 million related to this matter on our consolidated balance sheets within accrued expenses and other current liabilities.